Fuel Freedom recently learned about a man named David Ramey who drove his 1992 Buick Park Avenue from Blacklick, Ohio to San Diego using 100 percent butanol, without making any adjustments to his engine.
Ordinarily this wouldn’t be big news. But with the EPA now considering cutbacks in the 2014 biofuels mandate, some producers of ethanol are starting to turn to butanol as a way of getting around the limitations of the 10 percent “blend wall” that is threatening to limit ethanol consumption. This could be another breakthrough in our efforts to limit foreign oil.
Butanol is the alcohol form of butane gas, which has four carbons. Because it has a longer hydrocarbon chain, butane is fairly non-polar and more similar to gasoline than either methanol or ethanol. The fuel has been demonstrated to work in gasoline engines without any modification to the fuel chain or software.
Since the 1950s, most butanol in the United States has been manufactured from fossil fuels. But butanol can also be produced by fermentation, and that’s where another opportunity for reducing our dependence on fossil fuels exists.
The key is a bacterial strain called Clostridium acetobutylicum, also named the Weizmann organism for pioneering biological researcher Chaim Weizmann, who first used it to produce acetone from starch in 1916. The main use for the acetone was producing Cordite for gunpowder, but the butanol, a byproduct, eventually became more important.
Once set loose on almost any substratum, Clostridium acetobutylicum will produce significant amounts of butanol. Anything used to produce ethanol — sugar beets, sugar cane, corn grain, wheat and cassava, plus non-food crops such as switchgrass and guayule and even agricultural byproducts such as bagasse, straw and corn stalks — can all be turned into butanol. (Of course, not all of these are economical yet.)
Given the modern-day techniques of genetic engineering, researchers are now hard at work trying to improve the biological process. In 2011, scientists at Tulane University announced they had discovered a new strain of Clostridium that can convert almost any form of cellulose into butanol and is the only known bacterium that can do it in the presence of oxygen. They discovered this new bacterium in, of all places, the fecal matter of the plains zebra in the New Orleans Zoo.
DuPont and BP are planning to make butanol the first product of their joint effort to develop next-generation biofuels. In Europe, the Swiss company Butalco is developing genetically modified yeasts from the production of biobutanol from cellulosic material. Gourmet Butanol, a U.S. company, is developing a process that utilizes fungi for the same purpose. Almost every month, plans for a new butanol production plant are announced somewhere in the world. Many refineries that formerly produced bioethanol are now being retrofitted to produce biobutanol instead. DuPont says the conversion is very easy.
What are the possible drawbacks? Well, to match the combustion characteristics of gasoline, butanol will require slight fuel-flow increases, although not as great as those required for ethanol and methanol. Butanol also may not be compatible with some fuel system components. It can also create slight gas-gauge misreadings.
While ethanol and methanol have lower energy density than butanol, both have a higher octane rating. This means butanol would not be able to function as an octane-boosting additive, as ethanol and methanol are now doing. There have been proposals; however, the proposals are for a fuel that is 85 percent ethanol and 15 percent butanol (E85B), which eliminate the fossil fuels from ethanol mixes altogether.
The only other objection that has been raised is that consumers may object to butanol’s banana-like smell. Other than that, the only problem is cost. Production of butanol from a given substratum of organic material is slightly lower than ethanol, although the increased energy content more than makes up for the difference.
Ironically, the EPA’s decision to cut back on the biofuels mandate for 2014 is now driving some refiners to convert to butanol, since its greater energy density will help it overcome the 10 percent “blend wall.”
“Michael McAdams, president of the Advanced Biofuels Association, an industry group, said butanol was a ‘drop-in’ fuel, able to be used with existing gasoline pipelines and other equipment because it does not have a tendency to take up water, as ethanol does,” The New York Times reported last October. “‘It’s more fungible in the existing infrastructure,’ he said. ‘You could blend it with gasoline and put it in a pipeline — no problem.’
“Butanol would also help producers get around the so-called blend wall, Mr. McAdams said…With the 10 percent limitation, ‘you don’t have enough gasoline to put the ethanol in,’ he said. ‘You don’t have that problem with butanol.’”
So here’s to butanol. It will be yet another big step in reducing our dependence in foreign fuels.
Never a dull moment! The API is at it again. Just a few days ago, it dramatically issued a survey indicating that close to 70% of all consumers were worried that E15 (a blend of 15% ethanol and 85% gasoline) would damage their cars. While the survey was done apparently by a reputable firm, it was not attached to the press release, preventing independent experts or advocate group experts from commenting or verifying the questions and the sample. More importantly, the survey was preceded by an expensive oil industry media blitz that illustrated or talked about the so-called evils of ethanol. The survey and media show reflected an attempt by the oil industry to eliminate or weaken the renewable fuel mandates and lessen competition from alternative transitional fuels.
Americans are usually not Pavlovian in demeanor or behavior; we do ask for second and even third opinions from our doctors. But when only one group, in this case, the oil industry, has put out a continuous flashy very expensive multimedia message, the API’s survey results were almost preordained to reflect the published results. Whatever the industry wanted it got! If you tell a misleading partial story to create fear and uncertainty, long enough, it will likely influence many. In this case, the API, if it had a nose, its nose, similar to Pinocchio’s, would be growing and growing and growing.
Let’s look at the facts — never acknowledged by the API in its “Fuel for Thought” campaign.
- DOE effectively demolished the API-supported study many months ago indicating that the sampling approach was wrong and the analysis was faulty. DOE’s study used a much larger number of vehicles and was far more rigorous concerning methodology. (Just to let you know, API is an oil industry funded group.)
- Many countries around the world have used E15 and higher ethanol blends as a fuel without significant problems. They are seen as a way to reduce environmental problems. They are cheaper than gasoline and they reduce the need, at times, for oil imports. Put another way, they improve quality of life, lower costs to the consumer, and are good for the economy and security.
- Although oil company franchise agreements with gas stations have limited the number of stations able to sell E15, several states (mostly in the Midwest) with multi-fuel stations, have demonstrated the merits of E15. Early data appears to discount engine problems.
Hell, Henry Ford’s initial car was designed to run on pure ethanol until the temperance movement supported by Standard Oil banned the use of manufactured alcohol. I know Standard Oil was very concerned that Americans would drink ethanol at their favorite bars or in front of their favorite fire place with their favorite significant other. Praise be to Standard Oil for salvation!
The law (RFS) requires a 10% ethanol blend with gasoline. More than a year ago, EPA OK’d the sale of E15 (for most cars particularly those produced after 2001). In June, the Supreme Court refused to hear the appeal by the oil industry of EPA’s standards.
API’s media campaign raises the food versus fuel fight canard because ethanol is produced mostly from corn as the feedstock. But the narratives neglect to raise the fact that the evidence concerning the negative impact on food is disputed by reputable analysts who indicate that, for the most part, the corn used for ethanol production is not your friendly grocery counter corn. Put another way, most of the corn to ethanol conversion comes from corn not able to be used for food. Yes, there still maybe some impacts on corn production and prices because of the growers reallocation of land, in light of the differential between corn and ethanol prices, to ethanol. However, many studies suggest that if a negative food impact exists, it is relatively minor. It is a worthy debate.
It appears, that API, conveniently, forgets to mention that ethanol can be produced efficiently and effectively from natural gas and that cellulosic based ethanol is now being manufactured or will soon be manufactured in large volumes by several companies. Further, Clean Energy Fuels announced this week that it will start selling fuel made from methane in landfills and other waste sources in over 40 stations in California. Success of these initiatives, likely, will mean the end of the fuel versus food issue. If success is combined with the inexpensive conversion of existing cars to flex fuel cars permitting them to use alternative fuels, America will be blessed with a much cleaner, environmentally safe, and cheaper alternatives to gasoline- assuming the oil industry doesn’t block their sale at fuel stations.
Clearly, the oil industry does not want competition at the pump from ethanol…whether corn, cellulosic, garbage or natural gas. The American public should be wary of misleading guerilla marketing through industry funded surveys or not so benign expensive media blasts by captive organizations like API. Hopefully, the American consumer will not be confused for long. Paraphrasing a song by Peter, Paul and Mary about war and peace and a statement by President Lincoln, when will the oil companies ever learn?, and, if they don’t learn, when will they recognize “they can fool all the people some of the time and some of the people all the time but they cannot fool all the people all the time.”