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1、80MethanoltoolefinconversioncatalystsZhongminLiu*andJuanLiangThepastyearhasseenremarkableadvancesbothinmethanolplantresultsoftheMTOreactionandthecomparativeeco-toolefinprocessdevelopmentandinunderstandingthenomicestimationsoftheprocess.Thetestwascarr
2、iedoutcatalystsandreactionsinvolved.Themethanoltoolefininafluidizedbedreactionsystem.Thematerialbalanceprocessisnowonthewaytobeingcommercializedlocallydatashowthat,inthecaseofhigh-ethyleneproduction,thewitheconomicadvantagesincomparisonwithothernatur
3、alyieldofethyleneis19.98%andthatofpropyleneis12.99%.gasutilizationtechnologiesandconventionalnaphthacrackingComparisonwithothernaturalgasconversionandutiliza-processes.Usingaspeciallydesignedprocedure,acatalysttiontechnologies,suchasnaturalgastoliqui
4、ds(GTL)andfortheselectivesynthesisofethylenefrommethanolhasbeenliquefiednaturalgas(LNG),theprocessofnaturalgastoreliablyreproduced.Therelationshipsbetweencatalystolefin(GTO)viaMTOissignificantlymoreattractive.Topropertiesandreactionperformanc~esarecl
5、earerthaneverproduce500,000MTA(metrictonsannually)ethyleneinbefore.equivalentGTLandLNGplants,thesimplepaybackperi-odis5.1yearsforGTOtechnology,7.7yearsforGTL,Addresses7.9yearsforLNGand11.8yearsforthenaphthacrackingStateKeyLaboratoryofCatalysis,Dalian
6、InstituteofChemicalPhysics,process,respectively.TheeconomicswerefromaMiddleChineseAcademyofSciences,Dalian116023,ChinaEastlocationusinganaturalgaspriceof0.75$/MMBtu*e-mail:zml@rose.dicp.ac.cn(millionBritishthermalunits)withanapthafeedvalueofCurrentOp
7、inioninSolidState&MaterialsScience1999,150$/MT(metrictons).Thenaturalgastoolefintechnolo-4:80-84gyisalsomoreattractivethanconventionalnaphthacrack-Electronicidentifier:1359-0286-004-00080ingforethyleneandpropyleneproduction.Thecommerciallymanufacture
8、dcatalystcontainsSAPO-34©ElsevierScienceLtdISSN1359-0286molecularsieveastheactivecomponent.AnotherpilotAbbreviationsplanttestwasreportedbyLiuetal.[11"]usingdimethylGTLnaturalgastoliquidsetherasthefeedstock,whichissimilartoaMTOreaction.GTOnaturalgasto
