Katie Cordrey
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General Motors-backed Mascoma Corporation has developed a proprietary enzyme process to convert wood chips into ethanol fuel. The corporation is putting that process to the test. Up to 200,000 gallons per year of the alcohol-based fuel is being produced at a Rome, New York demonstration refinery. General Motors will use the fuel in its test car fleet. The video above provides an overview of cellulosic ethanol production.  Mascoma says it wants to use the same technology in a commercial plant it is planning for Northern Michigan, where chips from nearby lumber mills would provide the necessary biomass.
But the company says its process also can be used to break down the cellulose in other materials, including portions of sugarcane and corn stalks, that are not part of the human food chain.
Mascoma says the 40-million-gallon Michigan plant would cost at least $200 million to build ...
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