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dc.contributor.authorAkhtar, Naseem
dc.contributor.authorTukur, Nasiru M.
dc.contributor.authorAl-Yassir, Nabil
dc.contributor.authorAl-Khattaf, Sulaiman
dc.contributor.authorČejka, Jiří
dc.date.accessioned2016-02-28T07:59:05Z
dc.date.available2016-02-28T07:59:05Z
dc.date.issued2010-09
dc.identifier.citationAkhtar MN, Tukur NM, Al-Yassir N, Al-Khattaf S, Čejka J (2010) Transalkylation of ethyl benzene with triethylbenzene over ZSM-5 zeolite catalyst. Chemical Engineering Journal 163: 98–107. Available: http://dx.doi.org/10.1016/j.cej.2010.07.026.
dc.identifier.issn1385-8947
dc.identifier.doi10.1016/j.cej.2010.07.026
dc.identifier.urihttp://hdl.handle.net/10754/600110
dc.description.abstractTransalkylation of 1,3,5-triethylbenzene (TEB) with ethylbenzene (EB) has been studied over ZSM-5 zeolite using a riser simulator reactor with respect to optimizing DEB yield. The reaction temperature was varied from 350 to 500°C with contact time ranging from 3 to 15s to report on the effect of reaction conditions on TEB conversion, DEB selectivity and isomerization of TEB. The transalkylation of TEB with EB was compared with the reactions of pure 1,3,5-TEB and EB (disproportionation, isomerization and cracking). A synergistic effect was observed on the conversion of 1,3,5-TEB and DEB yield. The 1,3,5-TEB conversion increased from 40% to 50% with simultaneous increase in the DEB selectivity from 17% to 36% in transalkylation reaction (EB+1,3,5-TEB) as compared with the reaction of pure 1,3,5-TEB. It was found that pure 1,3,5-TEB underwent cracking reaction to produce DEB and EB. The isomerization of 1,3,5-TEB was more active at low temperature while cracking was more active at high temperature. The temperature of 350°C was observed as the optimum for production of maximum amount of DEB. Kinetic parameters for the disappearance of 1,3,5-TEB during its transformation reaction via cracking and isomerization pathways were calculated using the catalyst activity decay function based on time-on-stream (TOS). The apparent activation energies decrease in order E secondary cracking>E primary racking>E isomerization for ZSM-5 catalysts. © 2010 Elsevier B.V.
dc.description.sponsorshipWe would like to express our appreciations for King Abdullah University of Science and Technology (KAUST) for their financial support. The support of King Fahd University of Petroleum and Minerals (KFUPM) is also highly appreciated.
dc.publisherElsevier BV
dc.subjectCracking
dc.subjectDisproportionation
dc.subjectEthylbenzene
dc.subjectFCC-USY
dc.subjectIsomerization
dc.subjectKinetic modeling
dc.subjectTransalkylation
dc.subjectTriethylbenzene
dc.subjectZSM-5
dc.titleTransalkylation of ethyl benzene with triethylbenzene over ZSM-5 zeolite catalyst
dc.typeArticle
dc.contributor.departmentSecondary School
dc.identifier.journalChemical Engineering Journal
dc.contributor.institutionSABIC E and PM, P.O. Box 11425, Jubail Industrial City 31961, Saudi Arabia
dc.contributor.institutionInstitute of Physical Chemistry, Academy of Sciences of the Czech Republic, Dolejškova 3, 182 23 Prague 8, Czech Republic
kaust.personAkhtar, Naseem
kaust.personAl-Yassir, Nabil
kaust.personAl-Khattaf, Sulaiman
kaust.grant.fundedcenterKAUST Center In Development at KFUPM


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