Graduate Thesis Or Dissertation
 

Evaluation of feedstocks for cellulosic ethanol and bioproducts production in the Northwest

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/5425kd25m

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  • Cellulosic ethanol production for transportation fuel is one source to help satisfy the increasing worldwide demand for energy and depletion of the fossil fuel supply. Evaluating potential production from plants and waste in Oregon, Washington and Idaho is the purpose of this study. Reed Canary grass, Annual Ryegrass, wheat straw, corn cobs, corn pericarp, gorse and waste newspaper are studied. Except for the newspaper (an analogue of municipal solid waste), these are common agricultural crops or invasive plants which are adapted to this area, and most of the United States. This paper estimates the potential for production of ethanol from these feedstocks through an investigation of available cropland combined with laboratory research into ethanol yield from these materials. Laboratory data for the various feedstocks ranged up to 237kg/Mg (72 gallons/ton) of ethanol produced. Total Northwest cropland is 7,502,272 hectares (18,538,517 acres) with 2,638,955 hectares (6,520,793 acres) of that under irrigation. (2007 Census of Agriculture - County Data, 2008). Common gorse, Ulex europaeus L., was examined for amounts of ether, hexane, ethanol and steam extracts and cellulosic ethanol yield at different times of the year. The highest seasonal amount of each component was approximately double that of the lowest.
  • Keywords: ryegrass, lignocellulose, straw, pericarp, canarygrass, wheat, corn, cobs, newspaper, ethanol, gorse, cellulose
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