Počet záznamů: 1

Post-Synthesis Modification of SSZ-35 Zeolite to Enhance the Selectivity in p-Xylene Alkylation with Isopropyl Alcohol

  1. 1.
    0341713 - UFCH-W 2011 RIV NL eng J - Článek v odborném periodiku
    Musilová, Zuzana - Zones, S. I. - Čejka, Jiří
    Post-Synthesis Modification of SSZ-35 Zeolite to Enhance the Selectivity in p-Xylene Alkylation with Isopropyl Alcohol.
    Topics in Catalysis. Roč. 53, 3-4 (2010), s. 273-282 ISSN 1022-5528
    Grant CEP: GA AV ČR 1QS400400560; GA ČR GD203/08/H032
    Výzkumný záměr: CEZ:AV0Z40400503
    Klíčová slova: SSZ-35 * surface modification * p-xylene * 2,5-dimethylcumene
    Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
    Impakt faktor: 2.359, rok: 2010

    Modification of textural and chemical properties of SSZ-35 was investigated in respect to the catalytic behavior of this zeolite in p-xylene alkylation with isopropyl alcohol. Acidic treatment of the external surface of SSZ-35 crystals resulted in a decrease in the void volume of the zeolite and in the concentration of acid sites mainly located on the external surface. This was evidenced from the FTIR spectra of adsorbed pyridine and 2,6-di-tert-butylpyridine. The modification caused a significant increase in the selectivity to 2,5-dimethylcumene while the p-xylene conversion decreased only very slightly.
    Trvalý link: http://hdl.handle.net/11104/0184611