Ethanol - Student OrganizationsDean of Students：乙醇-學(xué)生組織學(xué)生處主任

1、Ethanol FuelSPEARApril 13, 2009Industrial Productionfermentationdistillationdehydrationglucose productionPlants Make GlucosePhotosynthesis6CO2 + 6H2O + light C6H12O6 + 6O2Common sourcesCornSugarcaneFermentationglucose ethanolC6H12O6 2C2H6O + 2CO2 + heatDistillation & DehydrationRemoves waterIndustri

2、al Productionfermentationdistillationdehydrationglucose productionCombustionGlucose is burned to generate heat that drives pistonsC2H6O + 3O2 2CO2 + 3H2O + heatOverall Reactionlight heatrenewable energy source! Ethanol-Only EnginesComparable fuel economyPure ethanol-only engines cannot use gasolineM

3、ax blend = E85 (85% ethanol, 15% gasoline)Problems and SolutionsCant be transported in gasoline pipelinePicks up impuritiesIncreased transportation costsPoet LLC and Magellan Midstream Partners LP are looking into building a 1,700-mile ethanol-only pipeline in the USProblems and SolutionsContains le

4、ss energy & is more expensive than gasolineHigh energy consumption to produceLess energy refilling the gas tank more oftenProcessing methods continuously being improved Less energy to produce by new methodsHigher energy content ethanol & lower pricesProblems and SolutionsTariff restricts importing c

5、heaper ethanolSen. Gregg & Sen Feinsteinn introduced measure to remove tariffImporting cheaper ethanol would lower price furtherProblems and SolutionsIncreased cost of food as more crops are used for ethanol instead of foodNew source “crops” are being looked intoSugarcaneCellulose sourcesSources / More InformationWikipedia: “Ethanol Fuel”“Ethanol: Myths and Realities”“NH Sen. Gr