Category Archives: Current Events

Whiners Going on About Increasing Oil Production

[Note: Let’s get something straight here. I’m an industrial chemist and not a pencil-necked economist. I’m going to talk about some O&G economics from my industrial perspective. MAGA people are whining about increasing oil production to ease gas prices. My view is that these buggers are idiots, but I won’t say it like that. I’ll just discuss some pragmatics of oil refining.]

In an article published 10/1/24 in The Center Square the writer reports that a survey of voters in the key swing states of Arizona, Georgia, Michigan, Nevada, North Carolina, Pennsylvania, and Wisconsin that between 80% and 86 % of voters say that the price of daily necessities has gotten painful. Between 88 % and 94 % say they are concerned about inflation. This survey was obtained by Morning Consult/American Petroleum Institute poll obtained exclusively by The Center Square. “The poll surveyed nearly 4,000 registered voters Sept. 20-22 with a margin of error of 4%.”

From the article-

Some refining basics

I think there is some misunderstanding generally about how the oil & gas (O&G) business works. First off, it is a global market and is subject to supply and demand pressures from all over the world. Second, there is O&G supply and there is refinery capacity. One might suppose that increasing O&G production domestically would automatically lead to lower fuel prices at the retail level. However, refinery throughput is limited to its particular capacity and storage. And, why would O&G producers increase output to an excess just to lower prices at the retail level? Leaving money at the table is against the instincts of every businessperson and is contrary to the fiduciary responsibilities of executives to stockholders.

Refineries are usually operated at about 90 % capacity. Lest one think that refiners only need to tweak the throughput up a bit, it must be understood that it is unwise to operate a refinery or any other manufacturing plant at a constant 100 % capacity. Like any other factory, a refinery is subject to sudden or planned maintenance requirements, equipment failures, process upsets, variability in oil feedstock composition, hurricanes, variable demand in product spread or even infrequent operational error. A sudden unexpected shutdown can lead to a variety of complications as well as unleashing hazards at the large scale. Once a refining process line goes down, repair and restart can take one or more weeks to months to bring the process back to stable production.

A petroleum refinery is operated on a continuous throughput basis with series and parallel processing occurring simultaneously. Operating a refinery profitably is a complex job requiring a specialized skillset. As a PhD organic chemist, I am barely qualified to even set foot in a refinery, much less be of any kind of use there. Chemists may be found on site, but most likely in the quality control lab. These are the rarefied heights of the petroleum engineer.

A petroleum refinery is designed to take crude oil and gas inputs and shape them into an optimal spread of profitable products. The focus will be on maximizing the output of the most profitable products, especially motor fuels in the form of the various grades of gasoline and diesel. Your local gas station buys fuel from a wholesaler/distributor at a quoted price then sets a retail price depending on not just the wholesale price, but more importantly the local market prices and expected sales volume.

Operating a refinery is a continuous flow exercise and is a bit delicate. A refinery is a web of continuous unit operations each with an input stream from one unit operation and an output stream to another operation. Each unit operation has a specific task to perform safely and efficiently. These unit operations subject the input hydrocarbon stream to heating, fractionation by distillation, and each of the many distillate streams are then subjected to their own unique processing. Other operations include alkylation, hydrotreating, sulfur scrubbing, catalytic cracking, isomerization, catalytic reforming, heat exchange, more distillation, blending and finally transfer to storage. Each operation is designed to process throughput at high flow rates to afford the best production rate of finished goods.

Waste process heat is directed to certain operations and used for greater efficiency. Oil refining inevitably produces light hydrocarbons whose recovery produces diminishing returns for recapture or comes from pressure venting where the vented gases are not suitable for recycle. In this case these gases are sent to a flare tower and burned. The flare tower plays an important safety role as it burns away flammable hydrocarbon gases that might otherwise accumulate and spread near the ground, posing a serious fire and explosion hazard.

Naturally, this requires considerable coordination to manage the rate of output of one operation to the input rate of the next. In fact the whole plant requires coordination of rates of throughput, pressure and temperature. A refinery is constantly monitoring and adjusting individual parameters with automation and human oversight to remain in “tune”.

During the recent COVID-19 pandemic and the reduction in demand, a number of refineries were shut down for maintenance or upgrades and a few were shut down permanently. This created a bottleneck in refining capacity nationwide and there was a shortfall in overall refinery output, leading to higher retail pricing of fuels as demand eventually rose.

Today the USA both imports petroleum and exports it. The supply of crude oil and gas depends on contractual obligations and who is willing to pay the highest prices.

Source: US Petroleum Balance Sheet, week ending 27 Sept 2024, Energy Information Administration (EIA)

The United States in a net O&G exporter. Between imports and domestic output, the US is currently processing enough O&G for our needs with surplus to export. And what will an increase in domestic fracking really do for the US, again pricewise? It can increase the production yields at individual O&G wellheads bringing greater volume for the O&G producer over time. Done properly, fracking makes sense. However, if fracking provides a conduit for natural gas, oil or produced water into ground water, then it can be irredeemably harmful for those so affected.

Even if domestic O&G production is increased and released into the market, the near-term problem will be limited refinery capacity. The lead time for building a large oil refinery can be 4-5 years from design phase to commissioning. Permits, financing and societal pushback can add considerable time. Putting a complex refinery in the ground can cost $5-$15 billion. Startup and adjustment of a refinery is time consuming, complex and can be a bit hazardous. Accidents during startup and shutdown are not uncommon.

The politically popular opinion that what the US needs is an increase in oil production to drive down retail gas and diesel pricing rests on specious assumptions. The government provides regulatory oversight in many aspects of O&G production and refining. In my view, government oversight in regard to environmental protection and worker safety is of critical importance. Global free market control of O&G production and distribution, while often heavy handed and seemingly heartless, is the best model we have at present for production and distribution of hydrocarbon-based goods to consumers. For a historical example of government control of supply and distribution, we can look at the Soviet Union and its authoritarian centralized control of nearly everything. The Soviet model of governance and production of goods and services failed spectacularly by 1991. The leadership of the USSR dissolved the Soviet system themselves after concluding that it was no longer workable. For all of its many flaws, the overall western model of capitalism continued to thrive.

In short, it only makes sense to increase O&G production to keep retail fuel prices low if the refineries demand more crude to meet their distributor’s demand. Refined fuels could be imported for distribution here, but an uptick in storage capacity will likely be required. Refineries are fundamentally limited by their processing capacity. Refineries, like most manufacturing operations, are designed to provide an optimum output with the installed equipment. Greater throughput requires larger equipment or additional process streams

Anecdote: Every day I pass through the intersection of an east/west state highway and a north/south interstate highway. On the west side of this busy intersection there are four gas station/convenience stores competing for our gasoline and diesel business. Just a block to the west is a stoplight and at the four corners of this are three of the gas stations with direct access to the light. The fourth is not at the light so entry or exit to this station is not controlled by the light. During the early morning commute time, the four electronic signs indicate morning prices that invariably are $0.20 to $0.60 lower than mid-day prices. The tall electronic signs allow for convenient rapid response to competing prices. One station is beyond the single stoplight intersection, so both exiting eastbound vehicles and entering eastbound vehicles who need to turn left across uncontrolled heavy traffic have to wait for a break in the congested traffic. This is a competitive disadvantage for them. The other three stations have direct access to the stop light. Co-incidentally, the traffic-disadvantaged station nearly always has the lowest prices first. This tends to set the stage for a daily price war. This morning the 85-octane gasoline price was $2.719 at all four stations.

There are some plusses for the disadvantaged station mentioned above. Unlike the other three stations there is room for 18-wheelers to fill their tanks with diesel and park overnight next to a cheap motel and a Waffle House (Hey! Waffle House hash browns are the greatest). The left turn across traffic disadvantage to 4-wheelers is only a minor obstacle to the 18-wheelers using the station since they are apparently fearless in pulling into heavy traffic to execute a turn.

Econ 101 Conclusions

Like everything else, scarcity applies pressure on hydrocarbon prices up and down the supply chain- from wellhead to fuel tank. National politics can play a role in hydrocarbon pricing if it threatens to alter scarcity in some way. In chemical kinetics we are interested in finding the rate limiting step in a multistep chemical reaction. This step is the bottleneck that controls the overall reaction rate. In much the same way, a bottleneck in a supply chain will control the rate of output of a given product. The rate of delivery through the bottleneck controls the rate of wealth creation for those in the supply chain. To increase the rate of wealth creation, one must multiply the number of these bottlenecks in parallel or design a new bottle with a larger neck. Importantly, the rate of wealth creation can be a winning positive or a losing negative number. Excess capacity anywhere in the chain results from excessive money spent on unneeded production scale.

Note: There is much more to the macroeconomics of O&G production than what I have addressed. The economics of O&G production and distribution in the US depends on policy and regulatory factors as well as considerable anticipation and speculation (gambling) in the marketplace. Despite this, it is possible to make certain very broad statements in the context of general supply and demand principles. The finer, high resolution, details can be found elsewhere.

Limitations of Quantum Computing

Note: First, let me make clear that I am not a computer scientist and while I’ve learned FORTRAN, BASIC and PASCAL in the early 1980’s followed by coursework in quantum chemistry in grad school- and somehow passed– the question of how quantum computation actually computes with qubits remains a mystery to me. Honestly, I’m weary of hearing about it. That said, I do continue to worry about the ever-increasing pressure on the liquid helium tit which quantum computing will definitely lock on to.

An interesting article came out in the current issue of Quantum Magazine giving some straight talk about how quantum computers might actually be used. All of us have been bombarded by breathless predictions of a wondrous future where we can find prime factors of stupidly large numbers and crack very secure cryptography.

Quantum chemistry is about orbiting electrons confined to particular regions of oddly shaped space around a positively charged nucleus, depending on their energy. That is a lifetime of study right there for me. I think I’ll stick to atoms and molecules.

Oh yes, in the early 80’s we used an IBM 360 and submitted our batch jobs as a stack of punch cards. Eventually we were allowed to use the DEC writer for BASIC programming. One sunshiny day an Apple 2 appeared in the chemistry department office. It had 16 K of memory, a green monitor and an external floppy disk drive. There were whispers that 32 and maybe even 64 K were on the horizon. Heady stuff.

The IT guys were surly then too.

Lawfare

There is an interesting substack post by historian and NYU prof. Ruth Ben-Ghiat discussing the latest filing by Special Counsel Jack Smith that was just unsealed and released by Judge Tanya Chutkan. The full 165 page document can be found here. Boiled down, the filing makes the case Trump is not immune from prosecution.

Ben-Ghiat summarizes-

The article goes on to say that Trump uses a ‘personalist’ model of governance where his personal, legal, political and financial needs take precedence over the party and the nation. And his needs are endless. The GOP is his personal storehouse of resources. His close followers are individuals who are strongly loyal to him and his mystique. He can convince others to conduct unsavory or even criminal acts, and when they fail, he’ll find someone else. This is not without precedent in the history of authoritarians.

The word ‘Lawfare‘ seems appropriate to Trump’s method courtroom delays and litigating to the hilt to sow confusion, expense and delay. it works, but is hugely expensive. Trump has been a wellspring of billable hours for the legal profession.

Imbeciles All

I just read that conservative influencers and even former president Trump have been referring to VP candidate Walz as ‘Tampon Tim’ over the state law mandating free menstrual supplies be available in grades 4-12 in Minnesota schools. The issue for some is that these supplies be made available to all needing access to the products, including transgender students, in whatever restrooms commonly used by students.

Editorial

I grew up in an America where such juvenile and scurrilous name calling would at least be kept out of the public discourse. It fell under the heading of “Mature and Common Decency” that most adults adhered to. That the insulting appellation “Tampon Tim” is being bandied about by a former US president in a presidential campaign watched by the world and being eagerly repeated by news outlets as infotainment. Even worse is the large population of MAGA citizens who accept and even encourage Trump’s troubling behavior. Trump is riding a wave that was already there waiting for someone like him.

The Minnesota law behind the controversy

HF 2497

Article 1

The response by the Trump horde has been vigorous and execrable. Even #45 himself is calling Walz ‘Tampon Tim’ in the open.

Oh, right. Karoline said that the threat was from ‘the leaderswho support …’. So, what kind of harm could women suffer from a leader who makes free feminine hygiene products available in the public schools? Her statement obviously signals ‘danger’ from tolerance for transgenderism. The matter of gender dysphoria is listed in DSM-5-TR as a recognized condition, but not a mental illness. The Journal Psychiatry has a short and readable paper on diagnosing gender dysphoria. From the article, Gender dysphoria is ‘a marked incongruence between one’s experienced/expressed gender and primary and/or secondary sex characteristics.’

Conservative protestant evangelical leaders and many GOP politicians who rage about the illegitimacy of gender transition have taken the path of idiocy and are happy to be there. Gender dysphoria is a medically recognized condition based on a minimum set of criteria. Those so afflicted often lead lives of misery that frequently ends in suicide.

This sounds like little more than a regression to the Victorian age taboo about discussing the female body and its physical processes. Or the entire subject of sexuality.

In this case I tend to think that being a female making ridiculous claims about an exclusively female topic does not afford refuge from criticism, but only boils down to a person being a dipshit trying to influence others by stoking brainstem-level fear. This is the usual Republican means of grabbing power.

Amassing Cannon Fodder is an Old Soviet Tactic

After reading a biography of the Russian Marshal of the Soviet Union, Georgy Zhukov, it becomes apparent that there are parallels between Soviet tactics in WWII and those used in the Putin-Ukraine conflict. Beyond the deployment of similarly vintaged tanks and weaponry, General Zhukov was notorious for committing his forces to battle with little regard for casualties. Similarly, Putin’s military has been characterized by the use of inadequately trained and equipped conscripts. Additionally, it has been reported that Putin’s forces have positioned troops behind the front lines to prevent or even target any deserting or retreating frontline soldiers. Zhukov’s approach often involved rapidly advancing battalions and armor to the front with minimal planning, depending on the attrition of Nazi forces. This tactic was typically executed under Stalin’s direct orders, though sometimes initiated by Zhukov independently.

The conflict between Putin and Ukraine has evolved into a war of attrition. Initially, Putin thought he could swiftly deploy tanks and troops as he did in southern Ukraine in 2014, seizing territory through sheer intimidation. However, he miscalculated the armaments, determination and tenacity of the Ukrainian forces. Since 2014, tens of thousands of Ukrainian soldiers have received training from Western nations. By February 2022, they were significantly better prepared and less intimidated by Putin’s military. In conventional warfare, the Russian military turned out to be a paper tiger, at least with its conventional non-nuclear forces, that is. The Putin-Ukraine war is still unfolding but Russia will come out of it severely stunted win or lose and possibly with new leadership. Whatever the outcome, the winner will have a great deal of de-mining to do. The conflict continues to unfold, but regardless of the outcome, Russia is likely to emerge greatly weakened, potentially with a change in leadership.

Putin is a smart guy. Certainly he knows the consequences of releasing as much as a single low yield tactical nuclear weapon, even if it’s limited to a demonstration. Pandora’s box would swing wide open and out would slink an ever-expanding series of repeats of above ground nuclear blasts until a city would be hit. Then all out nuclear war could happen in the old eye-for-an-eye fashion. Dark days would follow indeed.

Putin surely realizes the dangerous situation his county is in with mounting military losses, the brain-drain of skilled workers leaving the country and a crumbling oil and minerals-based economy. Yet he wears the neutral expression of the Sphinx in public because he must. He has painted himself and his nation into a corner. He even resorted to making nice with the plump North Korean dictator which must have been a nauseating demotion for him.

A bit of history

The Magna Carta was an agreement signed in England on June 10th, 1215, at Runnymede along the River Thames. This agreement had the unique provision of the enforcement of limitations on the sovereign. Rather than a simple recitation of grievances by the barons, the Magna Carta contained ‘security clause 61’ which provided for the barons the authority to seize the castles and lands of King John and hold them until such time as he held to his responsibilities as agreed upon in the signed document.

The Magna Carta was not just a contract between wealthy barons and King John, rather it was a step change towards political reform that provided for enforcement on the King. From Wikipedia

Unfortunately, the distrust between the barons and the Crown, compounded by the annulment from Pope Innocent III, led to its swift failure. Just a few months after the agreement fell apart, the First Baron’s War erupted. However, this was not the final chapter. The document was reissued in successive versions, with the more radical language removed, in 1217, 1225, and finally in 1297, when its remaining elements were incorporated into England’s statute law. It was not unique in its attempt to limit the power of the Crown; similar efforts were seen elsewhere. Over time, the Parliament of England enacted laws that overshadowed the original document, diminishing its significance.

Back to Russia

The point of highlighting the Magna Carta, despite its failure, is that nothing of this type of significance happened in the history of Russia, at least until the Bolshevik Revolution. Perhaps this comparison is too facile, causing real historians to choke on their Starbuck’s latte. But allow me to finish. The Magna Carta was not entirely unique for its era. However, it was notable for including a provision that enforced the good faith by the King. It represented a collective bargaining effort by the 25 barons with King John to alleviate some of the monarchy’s oppression and, in doing so, progress the political atmosphere for a short time with fits and starts. As kings often do, King John protested to the Pope, who then exerted his authority in a manner only a Pope could. The Pope excommunicated the Barons and nullified the agreement, having been persuaded by King John that it undermined the Church’s authority.

Russia seems not to have a tradition of producing successful popular uprisings to the power of the Tsar. of course, the Bolshevik revolution is the shining counterexample. Not in the sense of overthrow so much, but as an enforceable agreement to relieve a measure of oppression by the monarchy at all levels. In contradiction to this sweeping generalization is the case of Tsars Alexander I and II. Alexander I introduced minor social reforms but he was a strict Russian nationalist and Slavophile. Many of the reforms he instituted early in his career were retracted later.

Tsar Alexander II , however, instituted many liberal reforms but is possibly most revered for his Emancipation of the Serfs in 1861. In the US, he is remembered as the Tsar who sold us Alaska. He was a supporter of the Union in the American Civil War and even sent ships to New York Harbor and San Francisco Bay to deter Confederate warships. Eventually he was assassinated in Saint Petersburg on March 13, 1881. The first assassin’s bomb thrown under his armored carriage left him dazed but uninjured. The second assassin’s bomb thrown shortly thereafter delivered the fatal injuries as he stepped out to investigate. The third assassin’s bomb was unused.

Zooming forward to the present, what actions can the Russian populace take regarding Tsar Putin? After centuries of political oppression aided by new thinking, modern technology, and nuclear weapons the current Tsar has built a deep and wide moat around himself and his allies within the Kremlin establishment. Beyond this moat stands a population conditioned to obedience by fear, a legacy of decades of Soviet rule. I believe that national pride will deter them from emulating Western forms of civil society and governance. And why can’t they develop an authentically Russian something-something ‘democracy’, or whatever? Russia has deep foundation of cultural, artistic and scientific achievements to take pride in, despite its history of authoritarian governance. Whatever Russia eventually does, it will be heavily Slavic and Eastern Orthodox.

Russians are just as pleasant and smart as everyone else in the world, obviously. Russian hospitality is first rate as I have personally experienced. They just have the heavy blanket of oppressive leadership over them that continues to drag through the generations. Even if Putin falls out of power, there is a line of replacements cut from the same cloth. Perhaps a leader of a reform movement could rebuild Russia? It could happen but just as likely it could revert into a system that is better at prosecuting a war of aggression and suppression of the population. The replacement of Putin could be good for the world, or it could go sour. The world has to wait it out and see. In the meantime, it is critical to keep Putin out of Ukraine, Poland and the Baltic states.

The Putin government is like a toxic gas- it will expand into all of the space available. After the decades-long stand down in tension since the collapse of the Soviet Union, the problem of an aggressive Russia arises again. The West must remain the sturdy counter example to the authoritarian culture of Putin’s Russia. We in the USA, especially, need to do a better job as the shining city on the hill. Lately the shine is wearing off.

Aromaticity, Asphaltenes, Maltenes, Asphalt and Asphalt Concrete

9/11/24. At present numerous oil production platforms in the Gulf of Mexico have been evacuated because of Hurricane Francine. One of them is the “Who Dat” O&G field. The Who Dat field produces O&G with low wax content and no asphaltene flocculation. The origin of the phrase “Who Dat” comes from the Acadiana region of Louisiana. There are numerous claims to the origin of the phrase and there have been legal spats as to the trademark ownership of the phrase. The NFL in particular has thrown its ponderous weight around in the matter. The reader is encouraged dive into ‘controversy’ for themselves.

The low asphaltene-flocculation of the Who Dat field is fortuitous since asphaltenes can accumulate and choke the well bore or downstream piping, interfering with recovery. The graphic below is borrowed from a book chapter by Abdullah Hussein, Essentials of Flow Assurance Solids in Oil and Gas Operation, published by ScienceDirect in 2023. Fouling by asphaltenes can be removed by dissolution in aromatic hydrocarbons or detergents.

Source: Chapter 2 – Flow Assurance, Editor(s): Abdullah Hussein, Essentials of Flow Assurance Solids in Oil and Gas Operations, Gulf Professional Publishing, 2023, Pages 53-103, ISBN 9780323991186, https://doi.org/10.1016/B978-0-323-99118-6.00015-0 (https://www.sciencedirect.com/science/article/pii/B9780323991186000150). Reproduction of the graphic above is done under the Fair Use Doctrine.

As asphaltene-bearing oil rises in the wellbore, it will begin to depressurize and cool causing the asphaltenes to precipitate out of solution and aggregate, resulting in flocculation and fouling of the wellbore, downstream equipment and pipelines.

Graphic: Note that the higher the boiling point (heavies), the lower on the column a fraction is drawn from. In particular the asphalt fraction must remain quite hot to assure that it can flow away. The low boiling point fractions (lights) are vented off and sent elsewhere for processing. The graphic is sourced from here under the Fair Use Doctrine.

The simplified cartoon of a distillation column above shows that used in petroleum refining to isolate hydrocarbon components (fractions) in broad groupings by boiling point. These columns are quite tall and can be spotted easily as you drive by a refinery. Crude oil has suspended solids that are removed by water extraction which is then vaporized in a separate furnace under pressure. This hot, crude vapor is then pumped into the bottom of the distillation tower. For the non-industrial chemists out there who are accustomed to heating a reaction or distillation vessel directly nested in a heating mantle, this offset heat exchange approach is quite common. The fuel for the furnace can be several in-house sources.

Crude oil is a highly complex mixture of hydrocarbons and NSOs (nitrogen, sulfur, oxygen and heavy metals) with a broad range of structures and boiling points. These petroleum hydrocarbons contain a bit of nitrogen, sulfur and oxygen, produced water, natural gas, and inorganics. The hydrocarbons are further divided into linear, branched, aromatic/nonaromatic and cyclic carbon skeletons in which each can be subdivided again into differing molecular formulas and degrees of unsaturation. At this point the reader may need to take a cool refreshing dip into the pool of chemical bonding and the covalent bond in particular because this has a direct bearing on degrees of unsaturation.

A swerve into the weeds of chemical bonding

Here is the long and short of how the different types of chemical bonds affect the formula and structure of a molecule. Carbon atoms make up the skeleton of a molecule and are connected through the sharing of electron pairs. The shared electrons in a bond spend some fraction of their time in orbit between the two carbon nuclei and as such continue to screen out some of the mutual repulsion of the two nuclei. But that is not all. It turns out that this is where quantum mechanics rises from the murky depths of reality. The two bonding electrons are each able to occupy more space than what is available in the individual atoms and so drop in overall energy just a bit. This energy drop is manifested as heat which diffuses into the local environment. The amount of energy lost consists of a discrete quantity of electron orbital energy and occurs in a stepwise manner. This discrete step change is a “quantum jump”. [Note: a ‘quantum jump’ is often portrayed in the popular media as some type of Disneyesque dramatic and abrupt big shift in something or other. In reality it refers to a discrete step change in energy at the sub-nanometer scale.]

Graphics by Fred Ziffel. Each line between the Carbon atoms represents one pair of bonding electrons.

The number of bonds between the carbon atoms has consequences in the 3D shape of the molecule. In the 3 ball and stick representations below, only skeletal single bonds are shown (for reasons known only to ChemSketch).

Graphics by Arnold Ziffel. Bonds number 2 and 3 are omitted in Ethylene and Acetylene to emphasize the shapes. Note the flat planar shape of Ethylene compared to Ethane.

But what do you mean by ‘aromatic’?

The aromatic feature of a molecule is very special. It has a unique type of pi-bonding involving ‘special’ numbers of bonding electrons arranged in a ring and limited by the formula (4n + 2), where n is a counting integer. For n = 0, 1 2, etc., the numbers of electrons involved will be 2, 6 and 10 bonding electrons alternating in a ring. The most frequent ‘special’ number of electrons is 6, as in 3 alternating pairs of 2 electrons. Here, aromatic does not refer to fragrance, although many aromatic compounds like vanillin do have a fragrance. A cyclic group of 3 alternating bonding pairs of electrons will spontaneously ‘delocalize’ and occupy a lower energy level- a much-favored situation. That is, they will circulate around in a continuous ring and occupy a space above and below the ring atoms in a ‘sandwich’ fashion. Okay, we’re drifting a little too far into the weeds.

Graphics by Arnold Ziffel. Organic chemists draw a lot of chemical structures and, frankly, it can become tedious. To make life easier, certain graphical norms have arisen to stem the tedium.

Knowing full well that I am presenting a highly truncated explanation of aromaticity, I have borrowed 3 representations below of the aromatic compound benzene. Given that single C-C bonds are longer than double C=C bonds, one might expect to find that with both C-C and C=C bonds present, 3 bonds would be longer than the other 3. But this isn’t what’s observed. Measurements show that all 6 CC bonds are of the same length, 1.397 Angstroms. And the CC bond angles are all 120 degrees, again different from C-C bond angles. These observations tell us that all 6 CC bonds are equivalent yet different from isolated CC bonds. Note in the upper right structure the 2 blue rings situated above and below the carbon skeleton. These rings represent delocalized electrons that are off-axis to the C-C bonds. They sandwich the carbon skeleton of C-C bonds. The blue rings show the space where the 6 C=C bonding electrons may be found. The bottom structure is a space filling model showing approximately the space occupied by the electron cloud. Think of it as the location of where another molecule will collide with it.

The imaginary large molecule shown below consists of a central region that is flat and two domains that are kinked and bristling with hydrogen atoms. The structure is shown stationary but in reality, it is vibrating vigorously, tumbling in solution, being battered by adjacent molecules and mashing its way through any liquid that may be around it. You know, the usual liquid scenario. The cyclic alkyl groups on the left are locked in space allowing only limited wagging motion, but the alkyl group on the right is free to rotate about all of the C-C bonds allowing the chain to writhe and snake around in its immediate 3D space.

Graphics by Sam Hill. 3D and 2D structures of an imaginary asphaltene. The aromatic section of the molecule is flat while the alkyl parts are kinked and bristly.

Above I referred to “… the sharing of a pair of electrons.” This is only just 1 part in a story of several kinds of chemical bonding. One carbon atom can bond to another carbon atom with 1, 2 or 3 pairs of electrons, producing 1, 2 or 3 chemical bonds. Carbon can also bond by sharing electrons (covalent bonding) with other atoms like nitrogen, oxygen and sulfur to form single or multiple covalent bonds. Atoms like hydrogen, boron, fluorine, chlorine, silicon, phosphorus, bromine and iodine bond well with carbon but with only a single bond. In general, as we move to the left and down on the periodic table the sharing of electron pairs becomes more and more one sided favoring the atom nearest to the upper right of the table. [Note to the purists: we are going to ignore carbanions, carbocations and carbenes in this post.]

Back to our regularly scheduled program

So what does all this bonding jazz have to do with asphaltenes? The type of chemical bond that makes aromatic rings flat, the pi-bond, is very abundant in asphaltenes. An aromatic ring of 6 carbon atoms has 3 alternating pi-bonds. Such compounds are commonly referred to ‘unsaturated’ meaning they have multiple bonds between carbon atoms rather than bonds with hydrogen- they are unsaturated with hydrogen atoms. These molecules consisting of hexagonal arrays, sharing edges like a thin honeycomb and are able to stack on one another- sometimes called pi-stacking.

Graphics by Arnold Ziffel. Agglomeration is when stacks of asphaltene begin to form. Flocculation is when groups of agglomerated asphaltenes mass together.

The asphaltene component of asphaltene (!?!) has been defined as that fraction which is soluble in aromatic solvents like benzene, toluene and xylene, etc., but not in alkane solvents. From this link, “Asphaltenes are referred to [as] the poly-dispersed distribution of the heaviest and most polarizable fraction of the crude oil.” This property derives from the large fraction of aromatic structures in the asphaltene.

Asphaltenes are a complex mixture of hydrocarbons containing variable amounts of nitrogen and sulfur atoms built into the structures. As a category, asphaltenes are substantially aromatic in nature with rather high molecular weights but may have cyclic and acyclic saturated hydrocarbon, or alkyl, fragments attached. These alkyl fragments lend solubility of individual asphaltene components in saturated hydrocarbon solvents (alkanes) and thus offer a means of semi-selective isolation. Maltenes are asphaltene components that are viscous liquids soluble in n-alkane solvents. Maltenes provide the adhesive qualities in asphalt. Asphaltene is divided into 2 fractions: Asphaltene and Maltene.

The words asphalt and bitumen are sometimes used interchangeably, both referring to the same material. Asphalt is the American English version. To help avoid confusion, the terms “liquid asphalt”, “asphalt binder” or “asphalt cement” are used in the U.S. to distinguish it from asphalt concrete. We recall that concrete is comprised of aggregate held together by cement.

Colloquially, various forms of bitumen are sometimes incorrectly referred to as “tar“. Asphalt or bitumen occurs naturally or can be manufactured. The roadbeds we drive on are “asphalt concrete” where stone aggregate is mixed with hot liquid asphalt as a binder that upon cooling forms a hard, durable surface. In common usage “asphalt concrete” is shortened to asphalt while the British call it tarmac.

Thus far, we have been talking about crude oil-based asphalt. Roughly similar materials like tar or coal tars are derived from sources other than petroleum. Generally, the words tar and pitch are used interchangeably but each can be considered specific to separate starting materials. Tar is a dark brown or black viscous liquid and is the result of the destructive distillation of a wide range of organic materials like wood, peat, coal. or petroleum. Pitch derives just from plant material.

In the early 1960’s, Dr. Fritz Rostler and coworkers of the Golden Bear Oil Company, now Tricor Refining LLC, discovered the cause of asphalt deterioration. He found that during the heat treatment used in asphalt processing and/or under prolonged exposure to sunlight in the presence of oxygen, the maltenes are degraded and their adhesive attribute is diminished, allowing the asphalt/aggregate components to crumble.

Francine Shuts Down a Quarter of Gulf O&G Production

According to the online news source “Upstream“, what is at the time of writing the Category 2 Hurricane Francine spinning northeastward in the Gulf of Mexico has resulted in the shutdown of approximately 23.5 % of gulf oil and 26.6 % of gas production. Approximately 35 % of the 371 manned platforms in the gulf have been evacuated according to the US Bureau of Safety and Environmental Enforcement (BSEE).

Francine is projected to make landfall along the Louisiana coast Wednesday on 9/11/24 and move up through Mississippi. That is, unless Trump gets out his Sharpie marker and wills it in another direction ...

The “Who Dat Field” and more

Naturally, when investigating the gulf shutdown I saw mention of the “Who Dat Field“, I had to look into it. It is located in the Mississippi Canyon (MC) blocks 503 / 504 / 547 in the Gulf of Mexico (GOM) in water depths of 945m.

The origin of the phrase “Who Dat” comes from the Acadiana region of Louisiana. There are numerous claims to the origin of the phrase and there have been legal spats concerning the trademark ownership of the phrase. The NFL in particular has thrown its ponderous weight around in the matter. The reader is encouraged dive into controversy.

Imaging Valence-Level Electrons in an Organic Molecule!!

Just WOW!! A team from Nagoya University in Japan performing synchrotron X-ray diffraction experiments at SPring-8 were able to selectively extract an image of valence level electron density in the amino acid glycine. Did you get that? And guess what they found? The valence electrons were occupying a space the shape of a molecular orbital also derived from computation!! Amazing.

The aerial view of the facility is shown below. Despite the ring being situated on bedrock, the alignment of the magnets in the storage ring is so precise that the moon’s tidal forces can have a measurable impact on the ring’s performance.

Source: SPring-8 and the CernCurrier.
Source: Spring-8. Schematic of the overall beamline.
Source: Spring-8. There are 62 beamlines coming from the synchrotron storage ring.

The experimental work in question is that of Takeshi Hara, Masatoshi Hasebe, Takao Tsuneda, Toshio Naito, Yuiga Nakamura, Naoyuki Katayama, Tetsuya Taketsugu, and Hiroshi Sawa*, “Unveiling the Nature of Chemical Bonds in Real Space”, Journal of the American Chemical Society, accepted July 10, 2024. https://doi.org/10.1021/jacs.4c05673. As of this writing the full journal citation was not available.

Density Function Theory (DFT) calculations were performed with Gaussian 16, revision A.03.

Below is an illustration by a Riken artist comparing the theoretical valence level molecular orbital (MO) of glycine by DFT calculations and the experimental valence electron density distribution, or VED, collected by synchrotron x-ray diffraction at SPring-8.

Credit: Reiko Matsushita / RIKEN. Results from the XRD study of glycine.

If you’ve been through college chemistry, then no doubt you are familiar with atomic orbital theory beginning with Linear Combination of Atomic Orbitals, LCAO. Beyond LCAO is MO theory which goes on to help in the understanding of optical, electronic, magnetic and bonding properties of molecules. In the 1980’s and 90’s commercial software became available (and affordable)

Experimental details from the JACS paper-

Source: The Sawa paper cited above. The experiment was a single crystal X-ray Diffraction (XRD) study using the very narrow x-ray beam available from the synchrotron ring. The underlined text above reveals that the 1s2 orbital electron density was subtracted from the total experimental electron density. This would leave the partially filled 2s and 2p valence level MOs in isolation.

While structural determination by x-ray diffraction has been around for a very long time, what makes this work notable is the detection and imaging of electron density in valence level MOs and the close correlation to computational modeling.

For more information about the SPring-8 synchrotron storage ring, visit their website. The name stems from “Super Photon ring8 GeV”.

Putin: Latter Day Soviet or Just Another Tsar?

Note: Not residing in Russia, I cannot grasp the full extent of the events and mood unfolding there. All that remains is to perch on a power pole across the polar cap and try to discern fact from fiction.

>>> Let’s ask a very basic question about today’s Russia. Why can’t Russia Putin play nice? <<<

Like most, I have anxiously watched Putin’s invasion of Ukraine. The prevailing Russian narrative is trying to say that the sovereign nation known as Ukraine has historically been a part of Russia or some earlier Russian empire, a view promoted by Putin. Following the Bolshevik Revolution, Lenin directed the Bolsheviks to seize the territory now recognized as Ukraine. The goal was to claim territory for the Soviet Union, but also territory that was extremely fertile. Stalin ordered that Ukrainian industry and agriculture were to be collectivized. An independent Ukrainian government was briefly established but just as quickly collapsed. After several years of intense Ukrainian resistance and significant suffering, Lenin conceded and established Soviet Ukraine, enabling its incorporation into the Soviet Union as a constituent republic.

In the current action, with the support of an extensive security apparatus, Vladimir Putin has resolved that what is now Ukraine will be assimilated into a growing Russian empire. The process will methodically transform its Ukrainian identity through Russification, transforming it into southwestern Russia. Ukraine is expected to become an agricultural hub and potentially a strategic forward base for further military operations into Poland the Baltic states, and likely Moldova.

Why does Putin desire Ukraine when there is considerable open land to the east and north? Well, it’s the geography. The land beyond to the north and east of Moscow consists of vast stretches of challenging subarctic taiga and arctic permafrost, much of which is now thawing, making it unsuitable for roads, urban development, agriculture, and industry. In contrast, Ukraine boasts rich, productive farmland with significant annual grain exports. Additionally, along its southern coast, including Crimea, Ukraine possesses the only warm water ports available in the region, other than possibly the Neva River to the north which are vital for commerce and the military.

Historically, western European colonization was driven by the prospect of trade opportunity including raw materials, cheap labor as well as power projection. Like all countries, Russia would like room for its prosperity to grow. It is desirable that agricultural and industrial capacity also rise. However, Russia has learned the hard way the value of having a buffer zone between Moscow and Western Europe. The relative ease with which both Napolean and Hitler crossed the Eastern European territory enroute to Moscow, Leningrad and other cities through greater Russia did not go unnoticed by Stalin. By absorbing the Eastern European territories after WWII, Stalin built a picket fence protecting the Soviet state.

As the Nazi’s Operation Barbarossa was failing and Stalin’s Red Army began pushing the Germans into a westward retreat, the Soviets took advantage of the opportunity to install Soviet political structure in captured Nazi territory like the Baltic states, Eastern Europe and the eastern half of Germany. While Stalin did not share Hitler’s enthusiasm for exterminating Jews, he did act to eliminate preexisting local political structures which included substantial Jewish presence. This meant executions and large-scale banishment of politically unreliable people to the Russian gulag system. Poland was hit particularly hard by both Hitler and Stalin because it was directly between Russia and Germany and had a large Jewish population.

The above map shows the population density of Russia. A substantial fraction of Russians live in the southern and western regions of the country. If you assume that people are living there because it is at least somewhat livable, then the map shows the extent of land poorly suited for habitation.

Map of Russia showing areas that are 90 % populated by ethnic Russians.

Russia has a great deal of acreage but the livable turf is much smaller.

Putin views the world partially from the old cold war perspective. It’s Russia against the aggressive, corrupt and immoral west, but without the fever dream of a Soviet-style socialist world. Putin’s state-controlled media endlessly repeats that the west wants what the Russians have and stokes the fires of fear. For the Soviets, “aggressive, corrupt and immoral” included resistance to Soviet influence.

The Soviets were ardent promoters of global socialism. Although not overtly socialist, Putin appears more focused on preserving Russian culture and dominance from across a substantial territorial buffer with the West. He asserts his aim to shield Russia from Western cultural influences and what he perceives as a “belligerent” military stance.

Historically, Russia has endured invasions by King Charles XII of Sweden, Napoleon, and later Hitler. The history of the Kievan Rus from 830 to 1241 is jammed with bloody feuds, wars and invasions. From the Principality of Moscow in 1281 to the end of the Tsardom in 1917, and even beyond into the era of the Soviet Union and into Putin’s time, near continuous conflict has plagued the Russian people. Fortunately, Russia’s northern geography and harsh winters have often played to its advantage, compelling invaders into prolonged conflicts and misery with eventual withdrawal. But not always.

Most nations would like to have global hegemony. Putin is fond of saying that Russia has suffered greatly from American and Western hegemony since WWII and hopes to put an end to it. He has reestablished a Soviet-like security state apparatus with strict media control when he assumed power after the 8 years of Yeltsin’s chaos following the collapse of the Soviet Union. He is trying to resume for present day Russia the former Soviet Union’s international status but largely without the manpower and resources of the former adjacent Soviet states.

Source: The Fuller Project. Unexploded cluster bomb in Ukrainian wheatfield.

Like his Soviet predecessors, Putin both envies and worries about overreach of western hegemony and is moving to unseat the West. For that matter, so is China. This is only natural. I believe they resent western influence generally. The English language as the global lingua franca and the US dollar as the standard international currency are seen as an annoying affront to their own cultures, sovereignty and political significance. Again, this is only natural. And so is the temptation to use power projection or coercive propaganda to achieve their own hegemony. Casualties would be considered the West’s fault for being in the way.

Both Russia and China have long been critical of the West for internal propaganda purposes but to be fair there has been some valid criticism as well. In truth, the US has done some bone-headed things that we should not be proud of and that hardly serve to highlight our presumed “special” nature. But in fairness, most all cultures can look back at regrettable conduct in their history. Neither Chairman Mao’s China or Stalin’s USSR have sparkling clean histories either. Often the benefit of hindsight doesn’t come into focus until far down the timeline.

The Soviet Union in the person of Joseph Stalin, had brutalized Ukraine previously in an attempt to halt its independence. The Holodomor, meaning death by starvation, of 1932-33 is estimated by scholars to have killed 3.5 to 5 million people. This period of time is marked by forced collectivization of agriculture and industry in the USSR and Ukraine. Collectivization meant taking control of farmland owned by the peasants (especially the Kulaks), many times banishing them to the gulags never to be seen again. Already by 1931, Moscow had taken 42 % of the Ukrainian grain harvest, forcing some locations even to turn over seed for the following harvest. By early 1932 some districts in Ukraine were already experiencing famine. The governing committees in Ukraine in 1932 believed that the 6 million tons of grain demanded by Moscow was unachievable, yet they ratified the plan anyway.

The current brutal murder and devastation of Ukrainian citizens and their infrastructure and agriculture will take a generation or more to repair even if Russia prevails. Russia has done great damage to the Ukrainian environment in addition to the many casualties. Much of the country is cratered, littered with destroyed vehicles and war debris, denuded of vegetation, and rendered deadly by the landmines.

The great equalizer among the leading nations is Mutual Assured Destruction, or MAD, by virtue of the threat of the use of nuclear weapons for mutual annihilation. Sometimes just called “the bomb”, it was indeed invented by an international cast of scientists and engineers using American uranium and Plutonium and first used in successive releases by the US on Japan near the end of WWII in the Pacific theater. This will darken a stretch of American history indefinitely. Some continue to argue that the bombing was not necessary because Japan was soon to surrender, but it happened, and nothing can change that. However, to our credit, the US has never used it since and has actively sought with other nations to suppress the proliferation of nuclear weapons and remove the hair triggers for their use. That said, the US remains a no-first-use country but will participate in the principle of Mutual Assured Destruction as needed.

A Nuclear Sidebar

Very soon after the discovery of nuclear fission in December, 1938, in Nazi Germany by German-born chemists Hahn and Strassmann, and Austrian-born physicists Meitner and Frisch, the theoretical potential of using the vast energy output of nuclear fission for a bomb was quickly realized.  On May 4, 1939, Frédéric Joliot-Curie, H. Von Halban and L. Kowarski in Paris filed for three patents using a fission chain reaction. Two involved power generation and the third was for an atomic bomb, patent No. 445686. Fission was experimentally discovered in Dec. 1938, theoretically explained in January 1939, and a patent for the atomic bomb was filed on May 4, 1939.

The point of this atomic interlude is to highlight the short time interval between the discovery of nuclear fission, conceiving the idea of the atomic bomb and filing for a patent by scientists. On August 2, 1939, a letter written by Leo Szilard and signed by Albert Einstein was sent to President Franklin D. Roosevelt warning that Germany may be developing an atomic bomb. This led to the Manhattan Project and America’s entry into nuclear weaponry.

During and after the Manhattan Project, Stalin’s spies detected and infiltrated the American bomb project and presumably used important stolen information for their own nuclear program. This was an important shortcut benefitting the Soviets greatly. The first Soviet atomic bomb burst so soon after the war shocked the world.

Humans have a gift for the invention and use of weapons. I’m sure it has always been that way for humans. The inclination for war and conquest is also an ancient instinct. It is hard to see how aggression will ever change. In view of this distressing thought, how are we to proceed?

Looking forward

In the short term we in the west must continue to discourage Putin’s expansionist push. A win for Ukraine will set a precedent that might even unseat Putin. It is up to the many good people in Russia to be rid of him. However, Russian citizens will have to struggle against the vast authoritarian political machine in place just like the Poles, East Germans and the other Soviet states had to do in the late 1980’s. The intimidation and resources of the Putin authoritarian state are a huge obstacle.

My guess is that in general, doing the “right thing” in a culture of normalized authoritarianism, bribery and corruption is more difficult to accomplish than doing the “right thing” in a free and open culture where doing the right thing is occasionally practiced and always admired.

To a westerner like me, Russian withdrawal from Ukraine seems like the optimal solution to Russia’s present economic and military race to the bottom. Even in winning, Russia will inherit a devastated region that will require vast resources and a decade to repair, as well as a population of angry and vengeful citizens looking to kill a Russian or two. Then there are all of the land mines to contend with. There is amputation or death by landmines in the future for many unsuspecting people regardless of who wins.

A cessation of hostilities led by Putin is likely to end his career. Thus far, Putin’s invasion has led to over 500,000 Russian casualties, of which there have been over 80,000 Russian fatalities. In a way, this pales in comparison to Stalin’s murderous handiwork, but the comparison is really more like “terrible versus really, really terrible.”

Whether or not Putin is a reanimated Soviet leader or “just” another Tsar isn’t a question to dwell on. He is a creature of his time who happens to be a former Soviet KGB officer but has rejected Marxist/Leninism and rules by a roughly mafia-style kleptocracy behind closed doors in the Moscow Kremlin. For Russian citizens, the rule of thumb is if you stay out of political business, the government will stay out of your business.

Reuters Receives Raw Materials for Fentanyl

The news service Reuters recently published an article on the ease with which the raw materials for the production of the opioid Fentanyl. From their $3600 expenditure on raw materials they estimate they could have produced $3 million worth of Fentanyl.

For an estimated 74,702 Americans in 2023, Fentanyl provided them with a narcotic experience prior to death. The lethal dose is reported to be 2 milligrams for an adult. It is 20 to 40 times more potent than heroin.

Outside of medical use Fentanyl should be described as a highly (neuro)toxic substance rather than just an opioid. Yes, it is an illegal narcotic, but it is also a potent deadly poison. Hidden with other illegal drugs in pill form, it is just a highly toxic contaminant.

On January 5, 2024, I posted a piece titled “A Bit of Fentanyl Chemistry” which is reproduced below. It turns out that the Janssen synthetic chemistry I wrote about then is quite close to what the investigators at Reuters had in mind for their story. In the world of chemical commerce, a process using easily available raw materials is highly favored.

My take-home message from the Reuters story is that unless China seriously clamps down on those who export the raw materials, all that is left to do is to suppress demand. The import of Fentanyl raw materials is aided by deceptive packaging and small quantities needed. Worse, Fentanyl raw materials have other uses in pharmaceutical chemistry and are too useful to completely shut down. The death and incarceration that Fentanyl can bring in the US does not appear to be sufficiently convincing to the at-risk American population. Nothing new here.

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A recent raid on a clandestine drug lab in the Hatzic Valley east of Vancouver, BC, netted 25 kg of “pure” fentanyl and 3 kg which had already been cut for street use. Precursor chemicals used to manufacture the fentanyl were also seized. Along with the drug, the raid also seized 2,000 liters of chemicals and 6,000 liters (about 30 drums) of hazardous chemical waste, according to an RCMP news release 2 November, 2023.

The police said that the seizure represented 2,500,000 street doses.

In August of 2023 the police in Hamilton, Ontario, announced the results of Project Odeon. This was a large-scale sweep of illicit drug production in the Hamilton and Toronto area. From January 1, to July 30, 2023 there were 606 incidents related to suspected opioid overdoses and 89 suspected drug related deaths in the Hamilton area. Twelve people were charged for a total of 48 criminal charges. The police disclosed the following items that they seized-

  • An operational fentanyl drug lab at 6800 Sixteen Road, Smithville.
  • A dismantled fentanyl drug lab at 4057 Bethesda Road, Stouffville.
  • Approximately 3.5 tons of chemical byproduct from fentanyl production.
  • 800 gallons of chemicals commonly used in the production of fentanyl
  • Lab equipment commonly used in the production of fentanyl
  • 64.1 kg of illicit drugs, including 25.6 kg of fentanyl, 18 kg methamphetamine, 6 kg of ketamine
  • A loaded, Glock firearm and ammunition and four extended magazines
  • Over $350,000 of seized proceeds, including cars, jewelry, furniture and cash

Fentanyl is a synthetic drug first prepared in 1959 in Belgium by Paul Janssen (1926-2003). Janssen was the founder of Janssen Pharmaceuticals, now a subsidiary of Johnson & Johnson. In addition to fentanyl, the Jenssen team developed haloperidol, the ultrapotent carfentanil, and other piperidine based congeners. Piperidine itself is a DEA List 1 substance in the US.

Carfentanil is just modified fentanyl. Graphics: Will O. de Wisp

The elephant in the room with fentanyl is its extraordinary potency as an opioid. In pharmacology, potency is a quantitative measure of the amount of dose needed to elicit a specific effect on an animal or human in terms of dose weight per kilogram of body mass. Potency is subject to variability across a population and rises to an asymptote which can be difficult to pin down. For these reasons potency is reported at 50 %. For highly potent drugs like fentanyl, the measure is expressed as milligrams or micrograms of dose per kilogram body weight (mg/kg or mcg/kg body weight). One milligram per kilogram is one part per million (ppm).

When matters of toxicity arise, it is important to remember the maxim that “the dose makes the poison”. This observation traces back to Paracelsus in the mid-sixteenth century.

Fentanyl acts much like morphine in regard to its affinity for one particular opioid receptor. Morphine is commonly the “standard” with which other opioids are compared. For instance, fentanyl is said to be 50-100 times more potent than morphine. Only 2 mg of fentanyl is equivalent to 10 mg of morphine. Carfentanil is more potent still at 10,000 times the potency of morphine.

Morphine is an agonist which activates the μ-opioid receptor. Activation of this receptor with morphine produces analgesia, sedation, euphoria, decreased respiration and decreased bowel motility leading to the earthly delights of constipation. Fentanyl is thought to interact with this receptor as well.

Original fentanyl synthesis by Janssen. Graphics: Will O. de Wisp

So, how is fentanyl synthesized? See the synthetic scheme above. I’ll just comment on the Janssen synthesis and some issues. I have no idea of how it is made out in there by the Mexican cartels and in ramshackle American trailer parks. The synthesis above has some steps that may be undesirable for backwoods or jungle operations like hydrogenation. In the first step, aniline will be needed to make the phenyl imine. It’s pretty toxic and stinks to high heaven. Next, lithium aluminum hydride is needed to reduce the imine double bond to an amine. This innocent looking grey powder is very hazardous and should only be used by an experienced chemist. It is also available as a solution in tetrahydrofuran. The next step is the formation of the amide with propionic anhydride. While the reaction entails a simple reflux, you still have to isolate the product. Once you have recovered the amide, the benzyl protecting group on the piperidine nitrogen must be removed. It allowed amide formation exclusively on the upper aniline nitrogen and has served its purpose. Finally, the piperidine nitrogen must be festooned with a phenylethyl group and phenylethyl chloride was used to afford the fentanyl product. 

An excellent review of the pharmacology and drug design of this family of opioids, see Future Med Chem. 2014 Mar; 6(4): 385–412.

In chemical synthesis generally, substances are prepared in a stepwise manner and with as few steps as possible to give high isolated yields. To begin, one must devise a synthesis beginning with commercially available raw materials as close to the target as possible. If the product has many fragments hanging off the core structure, it’s best to solve that problem early. Synthetic chemistry is almost always performed in a non-interfering solvent that will dissolve the reactants and allow the necessary reaction to occur. A low boiling point is preferable for ease of distillation. An important side benefit from a solvent is that it will absorb much of the heat of reaction which can be considerable. Left on its own, a reaction might take its solvent to the boiling point by self-heating, generating pressure and vapor. The benefit from evaporation or reflux boiling is that as a solvent transitions from liquid to vapor there is a strong cooling effect which helps to control the temperature. An overhead condenser will return cooled solvent to prevent solvent loss.

You can do any chemical synthesis in one step with the right starting materials. Unfortunately, this option is rarely available. The next best option is to take commercially available starting materials through a known synthetic scheme. People who run illicit drug labs are never interested in R&D. They want (and need) simple chemistry that can be done by non-chemists in buckets or coke bottles at remote locations. Chemical glassware can be purchased but sometimes the authorities will be notified of a suspicious order. This is especially true with 12 liter round bottom flasks.

The most difficult and risky trick to illicit drug synthesis is obtaining starting materials like piperidine compounds in the case of fentanyl and its congeners. In the case of heroin, acetic anhydride shipments have been investigated for a long time because it is used to convert morphine to heroin- an unusually simple one-step conversion. Solvent diethyl ether is similarly difficult to get outside of established companies or universities. Many other common drug starting materials are difficult to obtain legally in the US or EU by the criminal element. However, China is thought to be a major supplier of starting materials outside the US and EU. Countries with remote coastlines, loose borders, lackadaisical or corrupt law enforcement reduce the barriers for entry of drug precursors.

China in particular has a large number of chemical plants that make diverse precursors for legitimate drugs. Unfortunately, some of these precursors can also be used for illicit drugs or existing technology adapted for this use. Precursors can be sold to resellers who can do as they please with them. Agents may represent many manufacturers and can mask the manufacturer’s identity and take charge of the distribution abroad. Shady transactions become difficult for authorities to detect and trace. The identity of illicit precursor chemicals are easily altered in the paperwork to grease the skids through customs. Resellers can repackage chemicals to suitable scale, change the paperwork and jack up the price for export. It has been my experience that many if not most Chinese or Japanese chemical manufacturers conduct business through independent export agents. However, behind the curtains there often a byzantine web of connections between companies and agents, so you may never know who will manufacture your chemical. As an aside, this complicates getting technical information from the manufacturer since the agent will not disclose a contact at that manufacturer.

Highly potent drugs like fentanyl must be taken in very small dosages which means that kilo-scale batch quantities of drug result in many individual sales per kilo. Small quantities of highly potent drugs are more easily smuggled than bulky drugs like weed with its strong odor.

There is a down-side to the illicit manufacture of drugs like fentanyl. It is quite toxic at very low dosages and must be handled with the greatest of care lest the “cook” and other handlers get inadvertently and mortally poisoned. Good housekeeping helps, but I have yet to see a photo of a tidy drug lab.

Fentanyl can be sold as a single drug but perhaps is cut with a solid diluent that some random yayhoo decided was Ok to use. Other drugs of abuse like heroin may be surreptitiously spiked with fentanyl to kick up the potency. In either case, a given dosage may or may not be safe even for a single use. There is no way for a user to know. Also, the concentration or homogeneity of mixed solids may be subject to wide variation. For more than a few people, their first fentanyl dose will be their last.