Synthesis of a ZSM-5(core)/SAPO-5(shell) composite and its application in FCC

Qiang Zhang, Chunyi Li, Shaojun Xu, Honghong Shan, Chaohe Yang

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A core/shell structure composite was synthesized via a new method of pre-coating one raw material. The composite was characterized by X-ray diffraction, SEM, TEM and N2 isothermal adsorption–desorption and Py-FTIR. In addition, the catalytic performance of the composite in cracking of heavy oil for producing olefin was also investigated. The characterization results show that the composite with a core/shell structure had smaller particle size, uniform SAPO-5 shell, and fewer acid sites than ZSM-5, accelerating the transport of reactant and product molecules between different zeolites. Consequently, the light olefins on the composites had high specific selectivity.
    Original languageEnglish
    Pages (from-to)171-176
    JournalJournal of Porous Materials
    Volume20
    Issue number1
    Publication statusPublished - 13 Apr 2012

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