South Dakota POET Plant Produces Cellulosic Ethanol from Corn Cobs
Following a successful start-up in the fourth quarter of 2008, POET Research Center in Scotland, S.D. is now producing cellulosic ethanol at a pilot scale, completing a crucial step toward development of commercially viable cellulosic ethanol. The Scotland plant is producing ethanol at a rate of 20,000 gallons per year using corn cobs as feedstock. The $8 million endeavor is a precursor to the $200 million Project LIBERTY, a commercial-scale cellulosic ethanol plant that will begin production in 2011. READ MORE
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Cellulosic Ethanol is a type of biofuel produced from lignocellulose, a structural material that comprises much of the mass of plants. Lignocellulose is composed mainly of cellulose, hemicellulose and lignin. Corn stover, switchgrass, miscanthus, woodchips and the byproducts of lawn and tree maintenance are some of the more popular cellulosic materials for ethanol production. Production of ethanol from lignocellulose has the advantage of abundant and diverse raw material compared to sources like corn and cane sugars, but requires a greater amount of processing to make the sugar monomers available to the microorganisms that are typically used to produce ethanol by fermentation.