Počet záznamů: 1

Transalkylation of ethyl benzene with triethylbenzene over ZSM-5 zeolite catalyst

  1. 1.
    0347025 - UFCH-W 2011 RIV NL eng J - Článek v odborném periodiku
    Naseem Akhtar, M. - Tukur, N. M. - Al-Yassir, N. - Al-Khattaf, S. - Čejka, Jiří
    Transalkylation of ethyl benzene with triethylbenzene over ZSM-5 zeolite catalyst.
    Chemical Engineering Journal. Roč. 163, 1-2 (2010), s. 98-107 ISSN 1385-8947
    Výzkumný záměr: CEZ:AV0Z40400503
    Klíčová slova: ethylbenzene * triethylbenzene * transalkylation
    Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
    Impakt faktor: 3.074, rok: 2010

    Transalkylation 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 15 s 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.
    Trvalý link: http://hdl.handle.net/11104/0187898