Nobel-Prize-winning chemist George Olah recently put methanol front and center again with a powerful Wall Street Journal editorial arguing for the conversion of carbon dioxide emissions from coal plants into methanol for use as a gasoline substitute in our car engines. Co-writing with University of Southern California trustee Chris Cox, Olah noted, “Thanks to recent developments in chemistry, a new way to convert carbon dioxide into methanol — a simple alcohol now used primarily by industry but increasingly attracting attention as transportation fuel — can now make it profitable for America and the world to reduce carbon-dioxide emissions.”
The authors argued that President Obama’s recently announced policy of mandating carbon sequestration for emissions from coal plants wastes a potentially valuable resource. “At laboratories such as the University of Southern California’s Loker Hydrocarbon Research Institute [founded by Olah], researchers have discovered how to produce methanol at significantly lower cost than gasoline directly from carbon dioxide. So instead of capturing and “sequestering” carbon dioxide — the Obama administration’s current plan is to bury it — this environmental pariah can be recycled into fuel for autos, trucks and ships.”
Olah, of course, has been the principal advocates of methanol since his publication of “Beyond Oil and Gas: The Methanol Economy,” in 2006.
To date, he has been recommending our growing natural gas supplies as the principal feedstock for a methanol economy. But the emissions from the nation’s coal plants offer another possibility.
This is particularly important since indications are that the Environmental Protection’s Agency’s assumption that a regulatory initiative will “force” the development of carbon-sequestering technology may be mistaken. A recent report from Australia’s Global CCS Institute said that, despite widespread anticipation that carbon capture will play a leading role in reducing carbon emission, experimental efforts have actually been declining.
The problem is the laborious task of storing endless amounts of carbon dioxide in huge underground repositories plus the potential dangers of accidental releases, which have aroused public opposition. Olah and Cox write, “By placing the burden of expensive new carbon capture and sequestration technology on the U.S. alone, and potentially requiring steep cuts in domestic energy to conform to carbon caps, the proposal could send the U.S. economy into shock without making a significant dent in global emissions… In place of expensive mandates and wasteful subsidies, what is needed are powerful economic incentives. These incentives should operate not just in the U.S., but in other countries as well.”
All this brings into stark relief the diverging paths that China and the United States have taken in trying to find some alcohol-based fuels to substitute in gas tanks. While Olah has been advocating a transformation to a methanol economy in this country, China is actually much further down the road to developing its own methanol economy. There are now more than a million methanol cars on the road in China and estimates show the fuel substitutes for 5-8% of gasoline consumption — about the same proportion that corn ethanol provides in this country.
In this country, the proposal has been that we derive methanol from our now-abundant supplies of natural gas. California had 15,000 methanol cars on the road in 2003 but curtailed its experiment because gas supplies appeared to be too scarce and expensive! Instead, the main emphasis has been on tax incentives and mandates to promote corn ethanol.
China has vast shale gas supplies and could benefit from America’s fracking technology. We could benefit strongly from China’s greater experience in developing methanol cars. The pieces of the puzzle are all there. Perhaps Olah’s proposal may be the catalyst that puts them all together.
Ironically, all this began with a Chinese-American collaboration in 1996. At the time, China had little knowledge or interest in methanol but was persuaded by American scientists to give it a try. Ford provided a methanol engine and China began ramping up its methanol industry and substituting it for gasoline. As a result, China is now the world’s largest producer of methanol, with about one-quarter of the market.
A year ago the Chinese national government was about to mandate a 15% percent methanol standard for gasoline when it ran into opposition from executives in its oil industry. Those leaders have since been deposed, however, and the 15% mandate may go ahead this year. In the meantime, provincial governments have developed their own standards, with the Shanxi province west of Beijing in the lead.
Ironically, because methanol is only half the price of gasoline, many local gas stations are diluting their gasoline with methanol anyway in order to shave their costs. As a 2011 Energy Policy article by Chi-jen Yang and Robert B. Jackson of Duke University’s Nicholas School of the Environment reported, “Private gasoline stations often blend methanol in gasoline without consumers’ knowledge… In fact, its illegal status makes methanol blending more profitable than it would be with legal standards. Illegally blended methanol content is sold at the same price as gasoline. If legalized, standard methanol gasoline would be required to be properly labeled and sold at a lower price than regular gasoline because of its reduced energy content. Such unannounced blending is now common in China.”
So both countries are feeling their way toward a methanol economy. As Olah points out, the problem in the U.S. is that the various advantages given to ethanol have not been extended to methanol.“One means of addressing this inequity would be for Congress to pass the bipartisan Open Fuel Standard Act of 2013, which would put methanol, natural gas, and biodiesel on the same footing as ethanol (but without subsidies and without telling consumers which one to choose) for use in flex-fuel cars.”
In China, the concern is about coal supplies but this could be alleviated with help from America’s fracking industry or by implementing Olah’s new technology for tapping coal exhausts.
Either way, the pieces are all there. It may be time to start putting them together.
