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ID:39122178
大小:2.29 MB
页数:61页
时间:2019-06-25
《分子筛催化剂上异丙苯与丙烯液相烷基化合成二异丙苯反应的分析》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、ABSTRACTINVESTIGATIoNOFDIISOPRoPYLBENZENESYNTHESISFROMLIQUID—PHASEALKYLATIONOFISOPROPYLBENZENEWITHPRoPYLENEoVERZEoLITECATALYSTBasedonallisothermalintegralreactor(reactordimension:①26×2.5mm,L450mm),themostsuitablecatalystfortheliquid-phasealkylationthatisopropylb
2、enzenewithpropylenefordiisopropylbenzenesythesiswasstudied,andthebestchoicewasYSBH--4catalyst.Thentheeffectsoftemperature,isopropylbenzene/propylenemolarratioandliquidspacevelocityonthealkylationreactionprocess(includingselectivityandconversion)wereinvestigatedb
3、ymeansofthesingle—factorexperimentalmethodunderawideexperimentrange(temparature140~220。C,liquidspacevelocity6~24h~,isopropylbenzene/propylenemolarratio4~16).Andtheorthogonaltextdesignwasemployedtoinvestigatetheglobaleffectofthesefactorsaboveonthalkylationprocess
4、andthesuitableoperatingconditionsweredeterminedasfollows:temperatureof160℃,isopropylbenzene/propylenemolarratioof14andspacevelocityof9h-1.Secondly,thethermodynamicpropertiesandreactionnetworkofthisreactionsystemwerestudiedsystematicallybasedontheexperimentalresu
5、lts.Asaresult,themainreactionandmainsidereactionsweredeterminedandtheIII北京化工大学硕士学位论文reactionnetworkforalkylationofisopropylbenzenewithpropylenewasproposed,whichcouldexplaintheexperimentalphenomenareasonablyinthispaper.Finally,PowerLawtyperateequationsofthissyste
6、mwereestablishedonthebasisofthereactionnetworkproposedandthedataofthekineticexperimentcarriedoutfollowingtheconditions:temperatureof140℃~220℃,isopropylbenzene/propylenemolarratioof3.1~17.1andthepressure3.0/VIPa,theparametersofthekineticmodelsweresearchedandestim
7、atedbymeansofSimplexoptimalmethod.TheresultsoftheStatisticalanalysisandtheresidualdistributiontestshowedthePowerLawtyperateequationsherewasconsistent淅mtheexperimentaldata,SOitwassuitableandreliable.KEYWORDS:diisopropylbenzene,operatingcondition,zeolite,alkylatio
8、n,thermodynamics,kineticsIV符号说明峰面积或关联系数浓度,tool·l一定压摩尔热容,kJ·tool-I.K‘1反应器内径,mm催化剂粒度,mm活化能,J'molo原料体积流量,ml·h0校正因子吉布斯自由能,kJ·toolJ烩,kJ‘tool"1虚拟平衡常数化学平衡常数反应速率常数,tool·gear-
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