合成气制甲烷联产液体产物以与低温转化制甲醇技术探索-研究

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1、北京化工大学硕士学位论文IV摘要Co．GENERATIONOFMETHANEWITHLIQUIDPRODUCTANDLOWTEMPERATUREMETHANOLSYNTHESISFROMSYNGASABSTRACTThefossilenergyinChinaischaracterizedwithabundantcoal，alittlenaturalgasandpooroil，whichleadstotheseriouscontradictionbetweenenergysupplyanddemandandincreasingdependen

2、ceofimportedoilwitll一一一thesustainedeconomicdevelopment．Therefore，forensuringtheenergysecurityandeconomydevelopment，it'sofhigh—significancetoexploreenergysubstituteforoilthroughtheutilizationofrichcoalresource．Firstofall，CO—generationofmethanewithliquidfuels／higheralcoholsf

3、romsyngaswasstudiedthroughinvestigatingthecatalyticperformanceofmixtureandcompoundofFischer—Tropschsynthesis(FTS)catalystandmethanationcatalyst，mixtureandcompoundofhigheralcoholsynthesis(HAS)catalystandmethanationcatalyst，aimedatsolvingthesyntheticnaturalgas(SNG)peakingpro

4、blemandCO—producingsomehighvalue．addedchemicalproductsandthenguaranteeingastablemarketprofitforcoaltonaturalgasindustry．Furthermore，asanextensionofco-productionsystemstatedabove，lowtemperaturemethanolsynthesis(LTMS)fromsyngaswasstudiedthroughinvestigatingtheeffectV北京化工大学硕士

5、学位论文ofZnOpreparationmethodontheLTMSperformanceofCu／ZnOcatalyst，whichwasattemptedtooptimizetheLTMSprocessandrealizethehighlyefficientandcomprehensiveutilizationofcoal．FTScatalyst10wt．％Co／Si02andmethanationcatalyst10wt．％Ni／Si02werepreparedwithimpregnationmethodwhereSi02wasap

6、pliedasthesupport．Then，thecatalyticperformanceofmixturecatalystwasinvestigatedatdifferentmixingratios(weightratio10wt．％Co／Si02：10wt．％Ni／Si02weightratio=l：2，1：1，2：1)，240—350。C，1-3MPaandH2／CO=1—3．ItwasfoundthatC0conversionvariedbetween5％and99％andCI-hselectivitychangedfrom20％

7、to90％whileC5+selectivityvariedbetween0and62％atthereactionconditionsdescribedabove．What’Smore，reactiontemperatureaffectedtheactivityandselectivityinco-producingmethanewithliquidfuelsmost，followedbytheeffectofH2／CO．IncreasingreactionpressurehadlittleeffectontheselectivityofC

8、H4andC5+whenthepressureishigherthan2MPa．TheFTS-methanationbi-functionalcatalyst6．7wt．％Ni3