Investigation into ZSM-48 framework acidity for maximization of p-xylene in toluene methylation

Lalit Kumar,Shreya Singh, Shivanand Pai,Bharat Laxman Newalkar, Manjesh Kumar,Kamal Kishore Pant

Molecular Catalysis（2024）

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摘要

•Low framework acidity ZSM-48 maximized p-xylene selectivity.•High framework acidity ZSM-48 supported toluene conversion.•Use of ZSM-48 subsided individual toluene and methanol side reactions.•Higher p-xylene selectivity for HZSM-48 (42 %) compared to HZSM-5 zeolites (23 %).•High framework acidity interior to pores and negligible external acidity are desirable.

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关键词

Methylation,p-Xylene selectivity,Toluene conversion,ZSM-48,Acidity,Silicon to aluminum ratio (SAR)

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