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The new ethanol: A debate over corn, oil and progress

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Interviewed at company headquarters in the St. Louis suburb of Chesterfield, Standlee was optimistic about his company’s first commercial-scale U.S. cellulosic ethanol refinery being built in Hugoton, Kan. At $250 million, it is not a cheap investment.

When operational late next year, the Hugoton plant will be able to produce 25 million gallons of ethanol, derived from about 350,000 tons of biomass, in this case corn stover, although the plant is being built to accept other feedstocks.

Cellulosic ethanol refiners manufacture lab-created enzymes that break down starches into a fuel source. These enzymes can work with a wide range of plants and plant residue, including wood chips, sawdust and abundant inedible plants such as switch grass.

Chemical giant DuPont also has a commercial-scale cellulosic plant that’ll produce 28 million gallons annually in Nevada, Iowa.

“The technological risk, as far as we’re concerned, is gone. … We get the yield that we want, we get the cycle times that we want, we get the productivity that we want,” said James Collins, president of industrial biosciences for DuPont. “The technology is there, and that is not to be taken for granted; it took quite a few years.”

The time is now for next-generation ethanol, said Collins, and the challenge is locking in suppliers.

“We’re really in supply-chain development. We’re not studying it anymore. Compared to other supply chains that other big industries use, this is relatively straightforward,” he said.

Both DuPont and Abengoa have forged contracts with large farmers to take a portion of the stover left on their corn fields, leaving enough to restore soil health. DuPont estimates there is enough extra stover to make between 1 billion and 2 billion gallons of ethanol annually.

“The encouraging thing to me is that farmers really like it. It works well in the farmer’s operation. They can see it is sustainable in their operation, and it is something they can continue doing,” said Jan Koninckx, DuPont’s global business director for bio-refineries.

A pullback now from the fuel standards, just as profit margins change because of soaring corn prices, could be disastrous. And not just for producers.

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