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1、Energy44(2012)911e924ContentslistsavailableatSciVerseScienceDirectEnergyjournalhomepage:www.elsevier.com/locate/energyThermodynamicanalysisofethanolreformingforhydrogenproductionShaohuiSun*,WeiYan,PeiqinSun,JunwuChenInstituteofCatalysisandPolymer,SchoolofChemicalEngineeringandEnergy,ZhengzhouUn
2、iversity,Zhengzhou450001,Henan,People’sRepublicofChinaarticleinfoabstractArticlehistory:Thisworkpresentsthesimulatedequilibriumcompositionsofethanolsteamreforming(SR),partialReceived28February2012oxidation(POX)andauto-thermalreforming(ATR)atalargetemperaturerange,steam-to-ethanolandReceivedinre
3、visedformoxygen-to-ethanolmolarratios.Thesimulationworkshowsthatthemolesofhydrogenyieldpermole27April2012ethanolareofthisorder:SR>ATR>POX.TheresultsarecomparedwithothersimulationworksandAccepted30April2012fittedmodels,whichshowthatallthesimulationresultsobtainedwithdifferentmethodsagreewellAvail
4、ableonline28May2012witheachother.Andthefittedmodelsareinhighlyconsistencywithverysmalldeviations.Moreover,thethermal-neutralpointincorrespondingtotemperature,steam-to-ethanolandoxygen-to-ethanolKeywords:moleratiosofethanolATRisestimated.Theresultshowsthatwiththeincreasingofoxygen-to-HydrogenEtha
5、nolethanolmoleratio,theT-Npointmovestohighertemperatures;withtheincreasingofsteam-to-Steamreformingethanolmoleratio,theT-Npointmovestolowertemperatures.Furthermore,theenergyexchangesofPartialoxidationthereformingprocessandthewholeprocessandthethermalefficienciesarealsoanalyzedintheAuto-thermalre
6、formingpresentworkandthattheenergydemandsandgeneratedinthewholeprocessaregreaterthantheThermodynamicanalysisreformingprocesscanbeobtained.Finally,theoptimumreactionconditionsareselected.Ó2012ElsevierLtd.Allrightsreserved.1.Introductionbiomassgrowth,whichoffersanearlyclosedcarbonloop[27].Asthebo
7、ilpointofethanolislowerthanwater,therearethreeHydrogenhasbeenreportedasoneofthefewlong-termprimarytechniquescanusedtoproducehydrogen:ethanolsteamsustainablecleanenergycarriers,onlygeneratingwatervaporasreforming(SR),partialoxidati
