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1、Seediscussions,stats,andauthorprofilesforthispublicationat:https://www.researchgate.net/publication/282719470Kineticsofp-xyleneliquidphasecatalyticoxidation(III)CatalystcompositionandconcentrationArticleinHuagongXuebao/JournalofChemicalIndustryandEngineering(China)·Ap
2、ril2004CITATIONSREADS13533authors,including:YouweiChengZhejiangUniversity82PUBLICATIONS676CITATIONSSEEPROFILESomeoftheauthorsofthispublicationarealsoworkingontheserelatedprojects:Jet-loopreactorViewprojectPTAwastewatertreatmentViewprojectAllcontentfollowingthispagewas
3、uploadedbyYouweiChengon13December2015.Theuserhasrequestedenhancementofthedownloadedfile.第55卷第4期化工学报Vol.55№42004年4月JournalofChemicalIndustryandEngineering(China)April2004研究论文对二甲苯液相催化氧化动力学(Ⅲ)催化剂配比与浓度的影响成有为李希(浙江大学化学工程与生物工程学系,浙江杭州310027)牛俊峰(浙江科技学院生物与化学工程系,浙江杭州310012)摘要对二甲
4、苯(PX)高温液相催化氧化过程采用Co-Mn-Br三元复合催化剂,对该催化体系的机理作了深入探讨,针对催化剂总浓度、溴浓度以及钴锰配比对主反应的影响规律进行了系统的动力学实验,获得了各步反应速率随催化剂浓度与配比的变化关系.研究发现,在实验所考察的温度与催化剂组成条件下该催化体系存在一最佳钴锰配比(1∶1),溴浓度和催化剂总浓度对反应速率都有显著的影响,其中以溴浓度最为敏感.关键词对二甲苯氧化催化剂中图分类号TQ032.4文献标识码A文章编号0438-1157(2004)04-0580-06KINETICSOFp-XYLENELI
5、QUIDPHASECATALYTICOXIDATION(Ⅲ)CATALYSTCOMPOSITIONANDCONCENTRATIONCHENGYouweiandLIXi(DepartmentofChemicalandBiochemicalEngineering,ZhejiangUniversity,Hangzhou310027,Zhejiang,China)NIUJunfeng(DepartmentofBiochemicalandChemicalEngineering,ZhejiangUniversityofScienceandTe
6、chnology,Hangzhou310012,Zhejiang,China)AbstractThecatalystsystemofcobalt,manganeseandbrominewasusedintheprocessofp-xylene(PX)liquidphaseoxidation.Thecatalystsexhibitedasynergisticeffectduringreaction.Toinvestigatethedistinctiveroleofeachcatalystcomponent,aseriesofPXox
7、idationexperimentsindifferentcatalystconditionssuchasCo/Mnratios,bromineandtotalcatalystconcentrationswerecarriedout.Thefractionalkineticmodelwasusedtofitthedataandtherateconstantforeachoxidationstepwasobtained.Theresultshowedthat,intheexperimentalconditionsunderconsi
8、deration,thereexistedanoptimumratioofcobaltvsmanganese(Co/Mn=1)andtheprocesswasmoresensitivetothechangeofbromineconcentratio
