Arctic Leaf

Bio-processing of Gas-to-Liquids: A Report Card

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If finding microbes that can convert cellulose plant material into ethanol is of the holy grails of biofuels, an equally elusive goal is using microbes to make liquid fuels out of natural gas.

Almost everyone agrees that the best way to apply our now-abundant natural gas resources to transportation would be to convert it into a “drop-in” liquid fuel that would fit easily into our current gas-station infrastructure. T. Boone Pickens’ CleanFuels Corp. and others are trying to supply compressed natural gas to diesel trucks, but the effort has obvious impediments and will require a whole new infrastructure.

Much easier would be the direct conversion of natural gas to methanol, the simplest alcohol, which is now produced at a rate of 33 billion gallons per year for industrial purposes. But methanol still suffers from its Prohibition-Era reputation as poisonous “wood alcohol” (although gasoline is equally poisonous) and has run into stiff EPA regulations on converting contemporary engines to burn alternative fuels. (See “Making the Case for Mars and Methanol”) And so the vision has arisen that a golden gas-to-liquids pathway can be carved by the nation’s laboratories working with nature’s existing microbial stock.

A year ago, ARPA-E, the fast-track research funding agency modeled on the Defense Department’s Advanced Research Project Agency, announced a new initiative: REMOTE – the Reduced Emissions Using Methanotrophic Organisms for Transportation Energy.  Methanotrophic organisms are microbes that feast on methane, the simplest carbohydrate, and can convert it into more complex molecules such as butane or formaldehyde, which can in turn be synthesized by other microbes into butanol, methanol or other liquids that can be cleanly burned as fuels.  As the agency wrote in its Funding Opportunity Announcement (FOA):

The benefits of converting natural gas to liquid fuels for use in transportation have long been recognized. First, the existing transportation infrastructure is based on liquids, and such fuels can be conveniently “dropped in” without substantial changes in vehicles. Second, liquid fuels from methane have lower emissions than petroleum-based fuels. Liquid fuel produced from methane decreases emissions by up to 50%, compared to unconventional petroleum, and decreases particulate matter by up to 40%, compared to combustion of conventional diesel. Further, methane is responsible for 10% of the nation’s greenhouse gas emissions (on a CO2 equivalent basis), in part because its global-warming potential is 20 times greater than that of CO2 over a 100-year period. Technologies capable of capture and conversion of methane will help mitigate the global-warming potential of these emissions.

There are several interesting things going on here. First, ARPA-E has chosen the goal of reducing emissions rather than reducing dependence on foreign oil as the motivating force of the project. Alcohols do burn cleaner than gasoline. In fact, the whole California effort that put 15,000 methanol cars on the road in the 1990s was aimed at reducing air pollution, not replacing oil imports. This may satisfy environmentalists, who tend to see natural gas as just another fossil fuel and would prefer to pursue cellulosic ethanol in order to remain “carbon neutral.”

Second, although the chemical synthesis of methanol, butanol and other potential fuels is already economical, employing biotechnology gives the whole plan a “green” tinge. Chemical processes are regarded as “old economy” and unlikely to attract investment from Silicon Valley and other centers of venture capital, whereas biotechnology has a New Age sheen to it. Already ARPA-E has handed out $20 million to small startups and others have been forthcoming.

Finally, by latching onto natural gas flaring, ARPA-E is addressing a problem that is gaining more and more attention, particularly the publication of a paper in Science last week claiming that will be no climate benefits in switching from diesel and other crude-oil-based fuels to natural gas derivatives. Indeed, flaring is now said to consume the equivalent of one-third of America’s consumption of crude oil. Obviously, anything that addresses this will get attention.

So how are thing going?  Last week Robert J. Conrado and Ramon Gonzalez, two researchers in the Department of Energy, issued a progress report in Science. Basically, the news is that while there’s still lots of optimism about the idea, nothing much has been accomplished yet.

Conrado and Gonzalez note that the process of biological conversion involves three steps:   1) the “activation” of the stable methane molecule so it becomes chemically receptive; 2) the conversion of methane to formaldehyde and other intermediates; and 3) the synthesis of these intermediates into alcohols and other fuels through bioreactors. All three steps need improvement. “To access small-scale and time-varying resources [i.e., flared gas at remote wells], process intensification leading to an order-of-magnitude increase in volumetric productivities is needed and will require technological breakthroughs in [all] three areas.”

One institution that is working on the problem is the Sandia National Laboratory in New Mexico. Blake Simmons, manager of the lab’s biofuels and biomaterial science group, says the challenges are daunting but he remains optimistic. “There have been plenty of investigations into this in the past since there are plenty of organisms in nature that thrive and multiply off natural gas,” he said in an interview with Phys.org. “The problem, though, is that they exist in unique, tailored environments and are typically very slow at what they do. People have been trying to express this class of enzymes for a couple of decades, so this won’t be a slam dunk. But we have the collective experience and capabilities at Sandia to figure it out.”

And so the search for a clean, green conversion of methane to a liquid fuel goes on. In the meantime, however, it might be worth opening the door to methanol and other chemically synthesized products just as a placeholder.

Arctic Leaf

Can Sochi Lead To A New Alternative Energy Coalition?

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During the late 1980s, I had the good fortune, thanks to the Rockefeller Foundation, to lead and facilitate an Aspen Global Forum between Russian and U.S. leaders in Sochi; the site of the present Olympics. The subject was economic development in the then already fragmenting, Soviet Union.

Sochi was beautiful but back then was a relatively small resort city for vacationing Russian nomenklatura. I have three memorable funny stories (at least for me) related to Sochi. I will try linking them, for better or worse, with the need for alternative fuels.

Getting to Sochi at the time provided a unique experience. The U.S. delegation which included a former U.S. Senator, several Wall Street titans, the editor of a major national newspaper, leading members of the Denver business community and myself (I was a Dean at the University of Colorado at the time) were told when we arrived at the Moscow airport in a snowstorm, we had to fly out of Moscow’s second smaller airport. We all dutifully were taken by shuttle, very slowly given the snow, to what seemed like an old, a very old facility. We quickly boarded what appeared to be a jet plane on its last legs. It was late at night and the snow was still blowing strong. The plane’s seats were broken and the bathrooms didn’t work. The cabin crew was nice but spoke only in difficult to understand broken English. Not an auspicious start to the trip. Two members of our delegation asked the pilot for 10 minutes to go into the terminal (an exaggeration of the term) to buy two or three bottles of vodka to give us courage and calm our nerves. They did get permission. It turned into a fun flight.

After we checked into the Intourist Hotel in Sochi, we all went to bed. One of the members of our delegation was a smart, tough, but very funny reporter and op-ed writer for the Rocky Mountain News. She came down the next morning and indicated most of her winter clothes were stolen from the room, while she was sleeping. I went up to the Manager of the hotel and told him what had happened. He was dutifully contrite. Every day while we were there, the reporter received a nice gift of new winter clothing to wear in the snow. At the end of the week, I thanked him and said, next time, have them take my clothes!  He laughed. I was serious!

The Russian delegation hosted us in the summer home of an apparently famous Russian oligarch, whose name I forget, about 100 or so miles from Sochi. They took us there in big Army helicopters. We flew over and between the mountains and valleys of the Caucasus. The mountains were covered with much snow and looked gorgeous. One of the Russian guides opened the door so we could get a closer view. A big mistake! A member of the U.S. delegation, a well-known war experienced woman journalist, based I believe at the time in D.C, shouted close the f….n door. “I have covered many wars and been shot at. I survived. I don’t want to go down in a helicopter. We can look at the snow through a window.” She was right. At that point the helicopter seemed tilted at a significant angle to please us. We all were a bit scared but didn’t want to hurt our Russian hosts. She had no such fear. The door was closed.

If anything, except fuzzy memories, ties these stories together, it’s the snow and the mountains and a thought about building a coalition around alternative and renewable fuels to save the beauty of both and to the jobs they provide both up and down stream.

Based on the over 50 degree temperatures in Sochi during the current Olympics and the lack of abundant snow, The New York Times indicated that Daniel Scott, a professor of global change and tourism at the University of Waterloo in Ontario, was stimulated to project the future of winter sports. He noted that with a rise of global temperature possible by 2100 of 7 degrees Fahrenheit, there might not be many snowy regions left to hold the Winter Olympics.  He concluded “that of the 19 cities that have hosted the Winter Olympics, as few as 10 might be cold enough by midcentury to host them again. By 2100 the number will shrink to six.”

Of the 960,000 winter sports industry jobs are supported by winter sports in the U.S. 27,000 have already been lost because of lack of snow, according to a recent NRDC report. More will be gone next season if snow fall totals continue to decline.

If we can easily check the box on one or more of the following: concern for the health of the economy, concern for the environment, concern for the quality of our water supply and the availability of water, concern for the future of the ski industry and winter sports off and on mountains, then even if we don’t ski, and even if greenhouse gas is not a top priority for some , we should be able to foster a strong coalition between environmentalists, business, nonprofits,  natural gas and renewable fuel  advocates. Its mandate would be to work on speeding up use of alternative natural gas based transitional fuels  and helping place electric cars on a faster and cleaner track to market acceptance. The strategy is not perfect by any stretch of the imagination but it will at least get the country started on a path that will reduce harmful environmental impacts of gasoline including significant GHG emissions and other pollutants. It may also help slow down the browning of our mountain areas and the closure of winter resorts and the manufacturing and retail sectors that serve them.

America needs a good dose of pragmatism and probability curves to guide its fuel policies. Advocates of natural gas based fuels and renewables should be able to coalesce around the President’s agenda with respect to weaning the nation off gasoline (one of the biggest carbon emitters) and gasoline only vehicles.

Assuming electric utilities continue to switch from coal to cleaner natural gas; scholars suggest that electric cars will be of help in reducing total carbon emissions. But EV’s are not yet ready for prime time for most low, moderate and middle class households, in light of the relatively low mileage secured on a single battery charge, the absence of retail distributers, the small vehicle size and price. When they are, let the competition begin, remembering all the while that real change in emissions and reduction of pollutants, will come after the conversion of large numbers of existing cars to flex fuel vehicles and their ability to use natural gas based fuels. Back to Sochi and indeed to the mountains throughout America, when we are asked every Christmas whether there is a Santa Claus, lets us be able to look up at magnificent snow-capped mountains and collectively say, yes there is a Santa Claus and then sing loudly, Let it snow, Let it snow, Let it snow.

 

Arctic Leaf

Making the Case for Mars and Methanol

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Robert Zubrin is one of those oddball geniuses who prowl around the peripheries of important national issues making suggestions that may seem completely off the wall but on closer inspection are revealed to have penetrating insight.

I first came across him a couple of years ago while writing about space exploration. Zubrin is perhaps the world’s leading advocate of manned trips to Mars. He’s written five books about making the trip to Mars, including How to Live on Mars (2008), which detailed how to establish a permanent colony on the red plant. None of this is going to happen soon, of course, and even though Zubrin is a highly trained aerospace engineer, it’s easy enough to dismiss him as a fatuous dreamer.

Except for one thing: he has also become the most knowledgeable and well versed advocate of substituting methanol from natural gas for imported oil as a way of breaking the back of OPEC.

Zubrin actually wrote his first highly informed book on the subject – Energy Victory – in 2008, before the fracking revolution began producing prodigious amounts of natural gas. At the time he was suggesting we use our abundant coal resources as the feedstock. Now that George Mitchell’s revolution has pumped up gas production to 24 times the level of 2007, the case is even stronger.

Zubrin has just published a 5,700-word article in the current issue of New Atlantis. I won’t do more than summarize it here, but I would recommend tying it up in a bow and giving it to everyone you know as a Valentine’s Day present. Zubrin wraps up all the major arguments for methanol and even manages to illuminate some obscure details about the Environmental Protection Agency’s policy toward methanol that eluded some of us for some time. Here are his major talking points:

  • OPEC still essentially controls the world price of oil. Even though non-OPEC production has increased 60 percent since 1973, 60 percent of the oil traded around the world is exported from OPEC countries and 80 percent commercially viable reserves are still owned by OPEC members. The price of oil is still set in the Persian Gulf.
  • This oligopolistic control has a huge impact on the American economy. Ten of the last 11 postwar recessions were preceded by sharp increases in oil prices. The recent upsurge in shale oil production won’t help much. The Energy Information Administration expects it to level off after 2016. By 2040 we will still be importing 32 percent of our oil.
  • Methanol made from natural gas is the only commodity that can realistically replace oil. “Methanol is not some futuristic dream touted by researchers seeking funding,” writes Zubrin. “Rather, it is an established chemical commodity, with a global annual production capacity of almost 33 billion gallons. It has recently been selling for around $1.50 a gallon.” Methanol’s energy content is only about 60 percent of gasoline, but the bottom line is that “pure methanol can get a car 30 percent farther down the road than a dollar of gasoline.”
  • Methanol has numerous environmental advantages. In fact, when California put 15,000 methanol cars on the road in the 1990s, it was for air pollution purposes, rather than cutting imports or reducing prices to motorists. Methanol burns cleaner, produces virtually no particulate matter or smog components, has none of gasoline’s carcinogenic aromatic compounds and reduces carbon emissions.  On pollution grounds alone, it would be worth making the transformation.

So why don’t we do it?  As Peter Drucker always said, in order to replace a well established technology, an upstart replacement must be 10 times as efficient to clear the institutional barriers. That’s a tall order. But as Zubrin details, there are some specifics that stand out:

  • In terms of sheer market capitalization, the oil industry far surpasses the auto industry. Thus, even though the auto industry might benefit from opening up to new fuels, the oil companies’ interest in maintaining the status quo overwhelms them. Zubrin documents how institutional investors that own large shares of the auto companies are even more heavily invested in oil. Several OPEC sovereign wealth funds also own huge slices of the auto companies. The Qatar Investment Authority owns 17 percent of Volkswagen, which has the highest auto company revenues in the world.  Its vice chairman sits on Volkswagen’s board.
  • The Environmental Protection Agency, through overregulatory zeal, has somehow ended up as one of the major impediments to methanol conversion, even though there would be vast environmental benefits. Although older cars can easily be converted to run on methanol at a cost of less than $200, the EPA no longer permits it. “Since 2002, the only way for a vehicle modification to be deemed lawful is if it receives certification ahead of time from the EPA or the California air-quality board. . . In 2009, the EPA specified massive fines that it may level against any individual or business that modifies a vehicles without advance certification, even if there is clear and compelling proof that no emissions increase had resulted, or even been risked, by such changes. In fact, even the use of unapproved engine parts identical to the certified brands would be considered an emissions violation . . . These fines are set at thousands of dollars for individuals and hundreds of thousands, or even millions, for manufacturers. For example, if a mechanic running his own small business converting cars to flex-fuel in his garage modified just a dozen cars, he would face a crippling fine of more than $105,000.”

In 2011 on National Review Online, Zubrin offered to bet anyone $10,000 he could modify his 2007 Chevy Cobalt (apparently in violation of EPA regulations) to run on 100 percent methanol and get 24 miles per gallon. He did it by replacing the fuel pump seal with a 41-cents replacement made from a synthetic rubber that resists methanol erosion. He also had to adjust the ignition timing for methanol’s higher octane. He would have won the bet but no one took him up.

As a way of moving the ball forward, Zubrin advocates the Open Fuel Standard Act, which has been sitting around in Congress since 2008. The present version would clear up some of the EPA’s restrictions and require at least 30 percent of each carmaker’s new vehicles be flex-fuel by 2016, moving up to 50 percent by 2107. The modification would only add about $200 to the price of the car.

Zubrin is one of those American treasures, an independent thinker operating outside the world of “policymaking” who dares think differently and big. His ideas for colonizing Mars may never get off the drawing boards.  But his proposal for substituting methanol as a domestic alternative to imported oil certainly deserves the greatest attention.

Arctic Leaf

No Sex-Just Smirking; No Lies-Just No Strategic Thinking; No Videotapes- Just Lots Of words And Ideology

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According to several well-known writers of blogs and columns, based on a recent study by North Carolina State University, EDV’s (electric cars, hybrids and plug ins) are not all they are cracked up to be. Because they may be powered by a coal or natural gas utilities, they spew pollutants, because hybrids may use gasoline, they emit ghg and other pollutants, because their production processes are “dirty,” they generate more pollutants than gasoline.

Electric cars in China have an overall impact on pollution that could be more harmful to health than gasoline vehicles…  EDVs ghg reduction will not make a big difference because the total number of vehicles in the U.S. only produces about 20 percent of all carbon emissions.”

I have seen higher numbers than stated by the writers concerning carbon emissions by cars and trucks fueled by gasoline. It is not clear whether the North Carolina study compared general supply chains to supply chain specifics. For example, EV engines use a proportionately large share of aluminum. Its mining probably emits more ghg than materials used in non evs. Yet, its use in cars, given its lighter weight, produces less emissions.

More relevant, perhaps, while recently there has been some retreat because of rising natural gas costs compared to coal costs, in the long term future, (perhaps aided by government regulations of carbon emissions,) conversion of coal based power generation to natural gas will  again trend upward and lower the total ghg allocated to EDVs.

The bloggers and columnists as well as the North Carolina scholars seem to believe in the theory that if you build it they will come.  Indeed, the most frequent comments on the models used in the study relate to one model, that is, a 42 percent EDV market share by 2050. It presumes a government cap on emissions.   Apparently, according to this model, any ghg reductions caused by EDVs will soon be filled up by other emitters. According to the study’s author, Joseph DeCarolis, ( interviewed by Will Oremus, a critic of the paper in his article in Future Tense, Jan. 27),   “It’s that there all this other stuff going on in this larger energy system that effects overall emissions.” I would add based on the study, DeCarolis presumes ghg emissions are fungible and equilibrium will result in 2050.

Diminishing the ghg importance of  EDVs ,  more than three decades out,  shifts  issues and initiates arguments over whether or not government should have a tougher cap; whether or not other sectors of the economy will illustrate more or less ghg emissions; whether or not technological advancements focused on ghg reduction across the economy will remain almost static; whether or not businesses will accept ghg reduction as a must or as part of  “conscientious capitalism” both to sustain profits and quality of life.

The continued development and increased sales of edvs are important to the nation’s long term effort to reduce ghg and other pollutants. But, until evs among edvs increase mileage per charge to remove owner fear of stalling out in either remote or congested places like freeways and until the price comes down and size increases for families with children, they will at best constitute a relatively small share of the new market for cars in the  near future. Even if the total numbers of edvs significantly increase their proportion of new car sales, many years will pass before they, will collectively, play a major role in lessening the nation’s carbon footprint.

Perfectibility not perfection should be a legitimate goal for all of us concerned with the environment. Individuals and groups concerned with the economic and social health of the nation should drop their ideological bundling boards. (Some of us are old enough to remember the real origins of the bundling board. Because of a shortage of space in many homes, it was used to separate males and females who often slept together before they were married in revolutionary days. I am not sure it was abandoned because mores changed, houses got bigger or people got splinters. I have no videotapes!)

2014 should witness the development of a non-partisan,non- ideological coalition of environmental, business, non-profit, academic  and government leaders to embrace  the need for an effective transitional alternative fuel strategy for new and existing cars and EDVs.  The embrace should respond to national and local objectives concerning the environment, the economy, and security and consumer well-being.   A good place to start would be to extend the use of natural gas based fuels, including ethanol and methanol.

Simultaneously, the coalition should encourage Detroit to expand production of flex fuel cars and the nation to implement a large scale flex fuel conversion program for existing cars.  Added to the coalition’s agenda should be development of a more open fuels market and support for intense research and development of EDV’s, particularly EVs.  Hopefully, evs will soon be   ready for prime time in the marketplace. Succinctly, we need both alternative fuels and evs.

Arctic Leaf

Can Butanol Be the New Ethanol?

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Even as the ethanol industry is wobbling over the Environmental Protection Agency’s decision to cut back on the ethanol mandate in 2014, a new candidate has emerged as an additive to gasoline – butanol.

Virgin Airways founder and CEO Richard Branson has announced that his Virgin Green Fund will be cosponsoring a groundbreaking butanol manufacturing plant in Luverne, Minnesota.  “Butanol is the future of renewable fuel,” said Branson, who is already using renewable jet fuel for his airline.  “It’s hugely versatile and can be used to produce gasoline fuel blends, rubbers, solvents, and plastics, which gives us scope to enter a range of markets,” he said in an interview with Bloomberg.

Corn ethanol now dominates the $26 billion gasoline additive market, drawing the glucose content out of 45 percent of the nation’s corn crop (the protein is fed to animals).  Branson’s butanol would use a similar feedstock – corn, sugar cane or cellulosic biomass – but would produce a fuel that has 84 percent of gasoline’s fuel density compared to ethanol’s 66 percent, although ethanol has a higher octane rating.  The implication is that butanol could be mixed at higher blends, giving it almost the same range as gasoline.

Both butanol and ethanol are made through a process that employs yeasts to ferments the glucose from organic material into alcohols.  Methanol, the simplest alcohol, has one carbon joined to a hydroxyl ion while ethanol has two carbons and butanol has four.  Octane, the principal ingredient in gasoline, has eight carbons without the hydroxyl ion.

As far a butanol is concerned, it’s not as if people haven’t tried this before.  Both BP and Royals Dutch Shell have experimented with producing butanol from organic material but have found the process harder than they anticipated.  “There is certainly a potential, but there have been quite considerable problems with the technology,” Clare Wenner, of the London-based Renewable Energy Association, told Bloomberg.  “It’s taking a lot longer than anybody thought years ago.”

Gevo’s plant in Minnesota, for instance, has been running at only two-thirds of its 18 million gallon-a-year capacity because of a contamination in its yeast fermenting facility in September 2012.  Similar instabilities in the microbial-based process have dogged the efforts to break down cellulose into simple molecules.  There operations can often be performed in the laboratory but become much more difficult when moved up to a commercial scale.

Branson is confident these obstacles can be overcome.  He’s already got Silicon Valley investor Vinod Khosla on board in Gevo and Total, the French oil company, has also taken a stake.  Together they have enlisted big ethanol producers such as Big River Resources and Siouxland Ethanol to commit to switching their manufacturing process to butanol.  Butamax Advanced Biofuel, another Minnesota refiner funded by Dupont and BP, is also in the process of retrofitting its ethanol plant to butanol.  Taken together, these facilities would be able replace 1 billion of the 14 billion gallons of ethanol now being produced every year.

Whether this would be enough to make a bigger dent in America’s oil import budget remains to be seen.  The 14 billion gallons of ethanol currently substitutes for 10 percent of our gasoline and about 6 percent of our total oil consumption.  The Environmental Protection Agency has limited ethanol additives to 15 percent of the blend, mainly to protect older cars.  (In Iowa, newer cars are running on an 85 percent blend.)  Now the reduction in the 2014 mandate is making the ethanol industry nervous about overcapacity.  Butanol is less corrosive of engines and the 16 percent blend could give it an edge.

On another front, T. Boone Pickens’ Clean Energy Fuels announced this week that it may turn a profit for the first time since its founding in 1997.  Clean Fuels is concentrating on supplying compressed natural gas for trucks, signing major contracts with Frito-Lay, Proctor & Gamble, United Parcel Service and Ryder.  It is also attempting to set up a series of filling stations on the Interstate Highway System.  The use of CNG requires an entirely new infrastructure, however, rather than the easy substitution of liquid and butanol.

The dark horse here is methanol, which is liquid and fits easily into our present infrastructure but would be synthesized from natural gas.  Somehow, methanol has not attracted the attention of Branson’s biofuels and Pickens’ CNG.     All of these efforts hold promise, however, and would make a huge dent in our annual $350 billion bill for oil imports, which constitutes the bulk of our $450 billion trade deficit.  So good luck to all and may the best fuel win – or all of them, for that matter.

Arctic Leaf

Oil and Natural Gas Prices and the Future of Alternative Fuels

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I love Vivaldi’s Four Seasons, especially the music from the spring. I love the optimistic line from the poem by P.B. Shelley, “if winter comes can spring be far behind.”  The unique cold weather, the Midwest, East Coast and even the South, has been facing this year will soon be over and spring will soon be here. Maybe it will be shorter. Perhaps, as many experts indicate, we will experience a longer summer, because of climate change. But flowers will bloom again; lovers will hold hands without gloves outside, kids will play in the park… and natural gas prices will likely come down to more normal levels than currently reflected.

Last Friday’s natural gas price according to the NY Times was $5.20 per thousand cubic feet. It was “the first time gas had crossed the symbolic $5 threshold in three and half years, although (and this is important) the current price is still roughly a third of the gas price before the 2008 financial crisis and the surge in domestic production since then.”

Why? Most experts lay the blame primarily on the weather and secondarily on low reserves, a slowdown in drilling, and pipeline inadequacies. The major impact so far has been on heating and electricity costs for many American households, particularly low and moderate income households and the shift of some power plants from natural gas back to coal.

I wouldn’t bet more than two McDonald’s sandwiches on where natural gas prices will be in the long term. But I would bet the sandwiches and perhaps a good conversation with a respected, hopefully clairvoyant, natural gas economist-one who has a track record of being reasonably accurate concerning gas prices- that come cherry blossom time in Washington, the price of natural gas will begin to fall relatively slowly and that by early summer, it will hover between 3.75 to 4.25 per thousand cubic feet.

Natural gas prices over the next decade, aided by growing consensus concerning reasonable fracking regulations as reflected in Colorado’s recent regulatory proposals, and EPA’s soon to be announced regulations, should be sufficiently high to reignite modest drilling passions, improvements in infrastructure and increased supplies at costs sufficient to maintain an advantage for natural gas based fuels when compared to oil based fuels at the pump.

The present relatively low price of oil (Bent Crude $107 a barrel; WTI $97.00 a barrel) and its derivative gasoline ($3.30 a gallon) may impact the cost differential between gasoline and natural gas based fuels. But the impact could go both ways. That is, if the price of oil per barrel continues to fall and translate into lower costs for gasoline, the price differences between natural gas based fuels and gasoline would narrow. Conversely, if the price of oil goes lower than $90 a barrel, its present price, it likely will impede future drilling, particularly in high cost, hard to get at environmentally sensitive areas. This fact combine with renewed economic growth in the U.S., Europe and Asia, as well as continued tension in the Middle East and continued speculation could well result in a return to higher gasoline prices.

Clearly, the relationship between the cost of natural gas based fuels (CNG, ethanol and methanol) and gasoline is a critical variable in determining consumer behavior with respect to conversion of existing cars to flex fuel cars and the purchase of new natural gas cars (Based on the national pilot involving 22 states lead by Governor Hickenlooper(D) and Governor Fallin(R), as well as interviews with carmakers, creation of a deep predictable market for CNG fueled vehicles will bring down the price of such cars and give them competitive status with gasoline fueled vehicles).

The odds are that the lower costs of natural gas based fuels will serve as an incentive to buyers and existing owners to use them. That is, assuming problems related to fuel distribution as well as access and misinformation concerning the affect alternative fuels have on engines are resolved by public, non-profit, academic and private sectors. Maybe I will up my bet!

Arctic Leaf

Altruism Aside, Is Ethanol A Competitive Alternative Fuel?

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I was a bit under the weather this past weekend. I thought it would be a good time to catch up on some reading; something assumedly simple- the relatively recent literature concerning the ability of ethanol, particularly E85, to compete with gasoline and the capacity of consumers to make rational decisions in their choice of alternative fuels.

By Sunday night, apart from watching the Denver Broncos happily beat New England on TV, and the amusing dialogue and extensive media time generated by Seattle’s cornerback, Richard Sherman, concerning his athletic and his academic prowess; I spent about 10 hours reviewing several well cited pieces concerning the price relationship between ethanol and gasoline. I also read the intense, often seemingly less than civil debate in papers authored by two professors at Iowa State (Dermot Hayes and Xiadong Du)  and two at MIT (Christopher Knittel and Aaron Smith) concerning methodology associated with defining the relationship between ethanol and gasoline prices. (The Iowa and MIT faculty vigorously attacked each other, sometimes personally, over mistaken attribution of research funding sources. More important, the Iowa folks generally argued that their data suggested a link between ethanol production and the price of gasoline. They indicated that, as ethanol production increased the price of gasoline decreased relative to the price of crude oil.

The MIT folks poo poo’d their distant colleagues’ findings. They indicated that their empirically based models illustrate only a statistically insignificant set of relationships concerning ethanol, gasoline and crude oil prices. They also opined that the Iowa writers misapplied the crack ratio –the relationship of gasoline to crude oil prices- and did not use or mistakenly used the crack spread ratio (the weighted average of the gasoline and distillate products produced by a barrel of crude oil minus the cost of crude). Put in another way, what the Iowa writers recorded was correlation not causation. (I know the etymology but we need to help the economists among us find a better set of terms than crack spread and crack ratio. For a minute, I thought that the texts described a line up at a police station or FBI statistics about drug use.)

What can we learn from recent literature about the effect of ethanol production and gasoline prices at the pump?

1. Most independent experts, not affiliated with advocacy groups, seem willing to support as fact that increased ethanol use, at times, will lower the price of gasoline or slow the increase in the price of gasoline. But the caveat is “somewhat.” They disagree on how much on either side of zero. The recent conventional wisdom, stimulated by the Iowa study that ethanol has and likely will reduce the wholesale price by $.89 cents to $1.09 per gallon seems wrong. It appears to reflect an overstatement based on analyses and models that do not accommodate the many complex variables affecting price and costs (e.g. costs of refining, rapid changes in the costs of corn, the costs of distribution, the lack of infrastructure, the unanticipated increases or decreases in costs of crude oil based on investor speculation, escalation or de-escalation of tension in Middle East, uncertain federal policy, etc.). If I were a betting person, I would place my bet on Knittel and Smith’s conclusions that, over time, the price impact of ethanol at the pump on gasoline prices is likely marginal at best.

2. However, to be fair, some scholars and practitioners in the energy business believe that if gasoline is blended with a larger proportion of ethanol (e.g. E85), the price of a gallon of fuel could well drop, given the idiosyncrasies of the present market.  If this occurs and the reduction appears to consumers as beneficial, a number of observers think that owners of flex fuel vehicles (new or converted) could be enticed to switch to E85. What they generally don’t know, is the cross over point where alternative fuels like E85 become a viable option to drivers because the prices seem to be a good deal. A smart and astute participant in a recent forum on alternative fuels indicated that “people drive to COSTCO or Wal-Mart to save 5-8 cents a gallon on gasoline. Why wouldn’t they switch to E85 blends, if they reflected similar or indeed larger savings and fuel stations were accessible?”

Maybe they would, maybe they wouldn’t! If the price is low enough, many drivers will likely engage in personal opportunity costing. But what is low enough? Getting gas at Wal-Mart and Costco is different from getting E85. Gas is a familiar product to most drivers. Consumers of E85 will have to surmount doubts over product safety, stimulated, I believe erroneously, by groups such as the AAA. Further, because E85 will get fewer miles per gallon, drivers will probably think about perceived price savings in the context of miles per gallon and extra trips to the fuel station (If they forget to do the personal math, they will be reminded to do so by oil companies).

3. Uncertainty exists concerning how much consumers will pay for ethanol based on personal preferences or commitments to societal well-being, what I call the altruism thing.

As one author put it, “ …the demand for ethanol (E85) as a substitute (E10) is sensitive to relative fuel prices: a  $.10 per gallon increase in ethanol’s price relative to gasoline leads to a 12-16% decrease in quantity of ethanol demanded. Price responses are considerably smaller, however, than they would be if households had identical willingness to pay for ethanol as a gasoline substitute and… results imply that some households are willing to pay a premium for ethanol.”

Why? Maybe to improve the environment, provide support for farmers, to express concern over national security, etc. A recent report from Brazil indicates that some Brazilians are willing to pay more for alternative fuels because of what seem to be altruistic reasons. Before we say hallelujah, I should note that we don’t really know the numbers seeking salvation. They are not your average household but rather as one economist notes they are likely “marginal” households in terms of numbers. Further, several respected survey firms in the U.S. doubt that goals related to the larger community or nation, even if consumers articulate them in their living rooms, will overcome large differences between the price of E85 and gasoline, if they occur.

Similarly, altruism or civic values will not overcome fear of engine damage or the need for relatively long trips to fuel stations to secure alternative fuels. The pews, at least until we know more, probably will remain filled with a proportionately large share of guilty drivers on Saturday or Sunday.

The Fuel Freedom Foundation is involved in three state pilot projects aimed at converting existing cars to flex fuel cars; cars that will permit their owners to use natural gas based fuel such as ethanol and, when it is legal, methanol. Hopefully the pilot projects, combined with strategic federal, state, foundation and private sector supported research, will expand knowledge concerning consumer decisions and variables such as the importance of price differentials, altruism, distance, access, etc.

A study supported by Fuel Freedom Foundation recently completed by the respected independent Resources for the Future optimistically noted that “…we see alternative pathways for bring a lower-cost E85 to the pump. If and when ethanol produced by the newly patented, NG-driven Celanese process becomes available, owners of FFVs could realize substantial cost savings, up to $0.83/gge in 2015. If and when cellulosic ethanol becomes available at projected cost for full-scale productions, owners of FFFs could realize similar cost savings.”

Sleep easy! Good Times are coming for the nation and the consumer.

Arctic Leaf

Can Ethylene Replace Gasoline?

/in , /by

The effort to replace oil-based gasoline in our cars with similar fuels derived from natural gas took a big step forward last week with the announcement that Siluria, a promising start-up, will build a $15-million demonstration plant in Texas

The plant will produce ethylene, the most commonly produced industrial chemical in the world and the feedstock for a whole raft of products in the chemicals and plastics industry. But Siluria, which is not yet a public company, is also planning demonstration plants that will produce gasoline. Initial estimates are that the product could sell at half the price of gasoline derived from oil. If these projections prove to be anywhere close to reality, we could be on a path to a fuel economy that is finally able to cut its dependence on oil.

The idea of producing ethylene from natural gas has been around since the 1980s but achieved little success. Several major oil companies invested millions of dollars in the process but finally gave up on it. Jay Labinger, a Caltech chemist who did much of the initial research, finally wrote a paper in the 1980s warning other researchers that it was a waste of time. He may have given up too soon.

Siluria is a California-based startup that has received much of its funding from Silicon Valley investors who tried to move from computers and the Internet into the energy space over the last decade. So far their success hasn’t been great. In fact Vinod Khosla and other Silicon Valley energy entrepreneurs were the subject of an embarrassing critique on “60 Minutes” only two weeks ago. The Siluria venture, however, may be the gusher that makes up for all the other dry holes.

The 1980s efforts concentrated on heat-activated processes whereby methane is split into carbon and hydrogen and then recombined into the more complex ethylene, which has two double-bonded carbons and four hydrogens. All these efforts proved far too energy-intensive, however, and never became economical.

Siluria has been trying a different approach, seeking catalysts that would facilitate the process at much lower energy levels. Moreover, the company has spurned the more recent approach of trying to design molecules that fit the chemicals just right and gone back to the old shotgun approach where thousands of candidates are tried on a catch-as-catch-can basis.

Defying all expectations, the process seems to have worked. Siluria has come up with a catalyst that it says promotes the breakdown and subsequent reassembly of methane at very low energy levels. It has built pilot plants in San Francisco, Menlo Park and Hayward, California and last week announced plans for building a full-scale demonstration plant in La Porte, Texas in conjunction with Braskem, the largest petrochemical manufacturer in South America. If that isn’t proof that Siluria is on to something, what is

The implications of this development are enormous. Natural gas is two to six times more abundant than oil in the world and is now selling at 1/5th the price for an equivalent amount of energy. The traditional tandem pricing of oil and natural gas prices has now been broken and gas is functioning as a completely different commodity, much cheaper.

The difficulty all along has been that natural gas is hard to put into your gas tank. So far efforts have involved compressing natural gas, which means storing it at 3600 pounds per square inch, or liquefying it, which requires temperatures to be lowered to – 260 degrees F. Neither is very practical and would require a whole new auto engine and delivery infrastructure.

Efforts to convert gas into a liquid have concentrated around methanol, which is the simplest alcohol and has been used to power the Indianapolis 500 racing cars since the 1960s. But methanol is the deadly “wood alcohol” of the Prohibition Era and raises fears about poisoning – although gasoline is poisonous, too. The Environmental Protection Agency has never certified methanol for use in auto engines, although an M85 standard has been permitted in California.

Synthesizing gasoline through Siluria’s ethylene-based pathway could solve all these problems. Ed Dineen, CEO of Siluria, says that the gasoline product could sell at half the price of today’s gasoline. With more natural gas being found all the time – and with $1 billion being flared off uselessly around the world each year – any success in turning natural gas into a readily accessible automobile fuel could have a revolutionary impact on our entire economy.