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http://dx.doi.org/10.1016/j.apcata.2005.04.033

has been cited by the following article:

• TITLE: Oxidative Dehydrogenation of Ethylbenzene over ZSM-5 Type Chromosilicates in the Presence of CO2

  AUTHORS: Ebrahim Sadeghi, Maryam Saket Oskoui, Maasoume Khatamian, Abdolhossein H. Ghassemi

  KEYWORDS: Chromosilicate, Styrene, Ethylbenzene, Dehydrogenation, Chromium Oxide

  JOURNAL NAME: Modern Research in Catalysis, Vol.5 No.3, June 30, 2016

  ABSTRACT: In this work, ZSM-5 type chromosilicate samples as K[Cr]ZSM-5(KCS) and Na[Cr]ZSM-5(NCS) were prepared by hydrothermal method and their catalytic properties were investigated for the oxidative dehydrogenation of ethylbenzene in the presence of CO2 as an oxidant using a fixed-bed stainless steel reactor. The prepared samples were characterized by their morphology (SEM), structural parameters (XRD), and textural parameters (BET). The performance of these catalysts was evaluated in terms of conversion, styrene yield, and selectivity. The KCSBW catalyst (potassium chromosilicate before washing with distilled water) afforded the highest styrene yield, 56.19%, with the selectivity of 96.05% in the presence of CO2 because of the coexistence of potassium ion and Cr2O3 in its structure and their synergistic effect. The influence of the presence of Cr2O3 and sodium or potassium ion on the catalytic activity of the chromosilicate samples in the catalytic EB dehydrogenation process was discussed in detail. Moreover, according to the results, the catalytic activity of the chromosilicate samples (CS) in EB dehydrogenation was increased by decreasing the surface area.