119生物质水解制取燃料乙醇及与热裂解联合利用的研究

682,39.29%42.83%23.82%41.78%57.84%53.44%ZHUANGXin-shu,WANGShu-rong,LUOZhong-yang,CENKe-fa(StateKeyLaboratoryofClearEnergyUtilization,ZhejiangUniversity,Hangzhou310027,China)Throughtheanalysisofthecriticalsituationofliquidfuelandtheapplicationofgasohol,itispointedoutthatthegasoholutilizationisthemostdirectandefficientwaytolessentheoilconsumptionanditisveryimperativetoproducefuelethanolbybiomass.Furthermorebiomasshydrolysisprocessforfuelethanolproducingwassummarized.CombinedwiththeresearchresultsofbiomasspyrolysisofZhejianguniversity,theco-utilizationofbiomassdiluteacidhydrolysisandpyrolysiswasdiscussed:Biomassmaterialsandlevoglucanproducedbypyrolysiswerehydrolyzedwithoneoftheproductsofpyrolysis-aceticacid,thenfermentingthehydrolyzatetofuelethanol,thehydrolysisresidueswhicharerichofligninwerepyrolyzedtoproducearomaticchemicalsandactivecarbon,theactivecarbonusedasthepurificantofthefermentingliquid.Theco-utilizationwouldlaythefoundationofbiomasscomprehensiveutilizationtosolvetheenergyproblem.Simultaneouslywith683thefacilitydesignedourselves,pine,poplarandcornstrawwerehydrolyzedbytwostepextremelylowacidhydrolysis.Thereducingsugarconversionratiois39.29%,42.83%and23.82%andthematerialconversionratiois41.78%,57.84%and53.44%respectively.Finallythehydrolysisresidueswereanalyzed.Biomass;Hydrolysis;Fuelethanol;Pyrolysis;ComprehensiveutilizationCampbllLaherrere(1998)2010205025×10105×109[1]12%1993[2]3020%16%[3]CO2H2OCO219732005216(1972)Email:[e-mail](gasohol)5-22%85-100%(1)(2)(3)MTBE(VOC)1/3(4)301975“”1550350220[4]8070%10%2002-201225[5]68490200190%8080%[4]199593%saccharomycescerevisiae80100[6]1990Dr.LonnieIngramE.ColiDOEZymomones(1)(2)(3)0.51g/g/0.46g/g/252612622COOHHCOHC+──→─2525105553COOHHCOHC+──→─34.5%-40wt%()[7]D-ß-1,420%15-22%[7]685612625106)(OHnCOnHOHCHn───→─++51052485)(OHnCOnHOHCHn───→─++30%1002-1090%ArkernolMasadaresourcegroupTVATennesseevalleyauthorityTVA10%1002-630%-40%1-470%1001-4205045-50pH4.895%Endoglucanases(EC3.2.1.4),Cellobiohydrolases(EC3.2.1.91)H-glucosidases(EC3.2.1.21)GenencorinternationalNovozymesbiotechincorporated10%100-24010:185618981932SchollerprocessSpringfieldFPLSchollerprocess,Madisonwoodsugarprocess195270801983Stinson6861H2SO4HClCH3COOHFeZn=0.07%0.07%-10%[8][9]1CH4H2CO[10][11]CH4H2CO,1Fig.1Comprehensiveutilizationpathwaysofbiomasspyrolysisandhydrolysis6871080.5-1mm,[15]18030min20*105Pa500r/min2150.05%H2SO435min40*105Pa500r/min[16]325atm3Fig3Twostepdiluteacidhydrolysisofbiomass2Fig2Lignocellulosebiomasshydrolysisfacilityunderextremelylowacid1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.68840(6)2min5%DNS3,5-7220.9[17-18]wt%–100/wt%100/gg/L0.9L40.05%H2SO4561/104Fig4Reducingsugarandmaterialconversionratioofdifferentkindsofbiomassbytwostepextremelylowacidhydrolysis6892C3.68%HOH39.93%60%1429kJ/kg123439.29%42.83%23.82%41.78%57.84%53.44%01020304050607080051015202530355Fig5Conversionratiocomparisonoftwostepcontinuousandseparatehydrolysisofpoplar6Fig6ConversionratiocomparisonoftheacidornoacidhydrolysisofthesecondstepofpoplarAd%Vd%Fcd%Cd%Hd%Nd%Sd%Od%Qb,d(MJ/kg)0.560.2586.2178.2913.2720.8648.5352.215.913.550.400.470.160.0844.4843.4319.5520.98690[1]Yesun,Uiayangcheng.Hydrolysisoflignocellulosicmaterialsforethanolproduction:areview[J].BioresourceTechnology,2002,83:1-11[2],.[J].,2000.6:52-55[3].[EB/OL].[4][5][EB/OL]=1[6],,.[J]..,2001.9:57-61[7]P.C.Badger,EthanolFromCellulose:AGeneralReview,Reprintedfrom:Trendsinnewcropsandnewuses[R].Alexandria,VA:J.JanickandA.Whipkey(eds.).ASHSPress,2002[8].[D].2003.6[9].[D].1999.11[10],,.[J].().()[11]ZhishengYu,HongxunZhang.PretreatmentsofcellulosepyrolysateforethanolproductionbySaccharomyces,Pichiasp.YZ-1andZymomonasmobilis[J].BiomassandBioenergy,2003.24:257-262[12]Junseokkim,Y.Y.leeetal.Cellulosehydrolysisunderextremelylowsulfuricacidandhigh-temperatureconditions[J].Appliedbiochemistryandbiotechnology,2001,91-93:331-340[13]MokWS-L,AntalMJ.Productiveandparasiticpathwaysindiluteacid-catalyzedhydrolysisofcellulose[J].Industrial&EngineeringChemistryResearch,1992,31(1):94-100[14]PetterssonPO,YorgetRW,EklundR.SimplisticModelingApproachtoHeterogeneousDiluteAcidHydrolysisofcelluloseMicrocrystallites[J].AppliedBiochemistryandBiotechnology,2003,105-108:451-455[15]MarkLaser.Hydrothermalpretreatmentofcellulosicbiomassforbioconversiontoethanol[D].Thayerschoolofengineering,Dartmouthcollege.2001,6.[16],,..2005.[17].3,5[J].(),1997,33(2):52-55.[18].[M].,2003.1:3437.[19],.[J].,2002,10(2):32-36