典型文献
Insights into the confinement effect on isobutane alkylation with C4 olefin catalyzed by zeolite catalyst:A combined theoretical and experimental study
文献摘要:
Elucidating the confinement effect harbours tremendous significance for isobutane alkylation with C4 olefin.Herein,the confinement effect over zeolite catalysts was elucidated by combining DFT calcula-tions,experiments(using the novel Beta zeolite exposing only external surfaces(Beta-E)and conven-tional Beta-I zeolite with both external and internal surfaces)and multi-techniques(e.g.,TGA-DTG,HRTEM,SEM and XRD).It is found that the main active sites for C4 alkylation reaction are located on internal surface rather than external surface.On the external surface,the hydride transfer reaction does not occur because the H-shared intermediate cannot be formed without the confinement effect.Moreover,the external surface has stronger selectivity for C4 olefin adsorption than isobutane,leading to enhanced oligomerization reactions.Therefore,the suitable micropore with confinement effect is essential for zeolite-catalyzed C4 alkylation.The atomic-scale insights of this work are of great referential importance to the design of highly effective zeolite catalyst.
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作者姓名:
Shuo Li;Jianlin Cao;Xiang Feng;Yupeng Du;De Chen;Chaohe Yang;Wenhua Wang;Wanzhong Ren
作者机构:
College of Chemistry&Chemical Engineering,Yantai University,Yantai 264005,China;State Key Laboratory of Heavy Oil Processing,School of Chemical Engineering,China University of Petroleum,Qingdao 266580,China;Department of Chemical Engineering,Norwegian University of Science and Technology,Trondheim 7491,Norway
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引用格式:
[1]Shuo Li;Jianlin Cao;Xiang Feng;Yupeng Du;De Chen;Chaohe Yang;Wenhua Wang;Wanzhong Ren-.Insights into the confinement effect on isobutane alkylation with C4 olefin catalyzed by zeolite catalyst:A combined theoretical and experimental study)[J].中国化学工程学报(英文版),2022(07):174-184
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harbours
B类:
Insights,into,confinement,isobutane,alkylation,C4,olefin,catalyzed,by,zeolite,combined,theoretical,experimental,study,Elucidating,tremendous,significance,Herein,catalysts,was,elucidated,combining,DFT,calcula,experiments,using,novel,Beta,exposing,only,external,surfaces,conven,tional,both,internal,multi,techniques,TGA,DTG,HRTEM,It,found,that,main,active,sites,located,rather,than,On,hydride,transfer,does,occur,because,shared,intermediate,cannot,formed,without,Moreover,has,stronger,selectivity,adsorption,leading,enhanced,oligomerization,reactions,Therefore,suitable,micropore,essential,atomic,scale,insights,this,work,great,referential,importance,design,highly,effective
AB值:
0.540704
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