Gevo, a prominent advanced-biofuels company that has received millions in U.S. government funding to develop fuels made from cellulosic sources such as grass and wood chips, is finding that it can't use these materials if it hopes to survive. Instead, it's going to use corn, a common source for conventional biofuels. What's more, most of the product from its first facility will be used for chemicals rather than fuel.

Besides relying on corn in order to overcome supply challenges, the company is reducing capital costs by retrofitting existing corn ethanol plants rather than building new ones; the retrofit of the first plant, in Luverne, Minnesota, will cost about $40 million, a fraction of the hundreds of millions it costs to build a new plant. And rather than making ethanol, Gevo is making butanol, which can command a higher price—especially for use as a feedstock for the chemical industry. Gevo expects that it can make butanol from corn—a readily available feedstock—for significantly less than it costs to make it from petroleum.



Dr. Stephen R. Humphrey, Director,
School of Natural Resources and Environment,
Box 116455, 103 Black Hall, University of Florida
Gainesville, FL  32611-6455  USA
Tel. 352-392-9230, Fax 352-392-9748