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Surface Constitution and Catalytic Properties of Zn-ZSN-5 Cr-ZSM-5 F-ZSM-5

Ge� Xiao

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Abstract

The surface constitutions of Zn ZSM 5, Gr ZSM 5 and F ZSM 5 were examined by XPS. The catalytic activities before and after steam treatment of the various modified ZSM5 samples were investigated by cracking reaction of n Hexadecane. The results showed (1) ZSM 5 samples underwent de aluminum of framework during the process of steaming and their cracking activities decreased dramatically; (2)After steam treatment, the cracking activities of HZSM 5 modified by ZnCl 2, CrCl 3 in creased obviously, so did the cracking activity of HZSM 5 modified by NH 4F.

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What this paper is about

The surface constitutions of Zn ZSM 5, Gr ZSM 5 and F ZSM 5 were examined by XPS. The catalytic activities before and after steam treatment of the various modified ZSM5 samples were investigated by cracking reaction of n Hexadecane. The results showed (1) ZSM 5 samples underwent de aluminum of framework during the process of steaming and their cracking activities decreased dramatically; (2)After steam treatment, the cracking activities of HZSM 5 modified by ZnCl 2, CrCl 3 in creased obviously, so did the cracking activity of HZSM 5 modified by NH 4F.

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Available abstract

The surface constitutions of Zn ZSM 5, Gr ZSM 5 and F ZSM 5 were examined by XPS. The catalytic activities before and after steam treatment of the various modified ZSM5 samples were investigated by cracking reaction of n Hexadecane. The results showed (1) ZSM 5 samples underwent de aluminum of framework during the process of steaming and their cracking activities decreased dramatically; (2)After steam treatment, the cracking activities of HZSM 5 modified by ZnCl 2, CrCl 3 in creased obviously, so did the cracking activity of HZSM 5 modified by NH 4F.

Key concepts: ZSM-5, Fluid catalytic cracking, Cracking, Steaming, Catalysis, X-ray photoelectron spectroscopy, Aluminium, Chemistry

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Surface Constitution and Catalytic Properties of Zn-ZSN-5 Cr-ZSM-5 F-ZSM-5 — Research Paper | ScholarLens