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Structural Effects of HZSM‐5 Zeolite on Methanol‐to‐Propylene Reaction
Author(s) -
Jami Shahira Islamdoost,
Nakhaei Pour Ali,
Mohammadi Ali,
Kamali Shahri Seyed Mehdi
Publication year - 2020
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.202000066
Subject(s) - zeolite , catalysis , methanol , selectivity , hydrothermal circulation , chemical engineering , mesoporous material , materials science , chemistry , hydrothermal synthesis , butylamine , inorganic chemistry , organic chemistry , amine gas treating , engineering
ZSM‐5 zeolite was synthesized using n ‐butylamine as a template under hydrothermal conditions. The morphology of the prepared zeolites was changed with the initial gel composition. The influences of OH − /template and H 2 O/template ratios on the morphology, mesoporosity, acid properties, and crystal size of the synthesized zeolites were evaluated, also the structural effects of the prepared zeolites on the catalytic performances of the methanol‐to‐propylene process. Increasing the external surface area and mesopore volume of the catalysts improved the propylene selectivity. A direct relationship between the deactivation of catalysts and their acidic properties was found. The results were derived from laboratory data and need to be re‐examined on a larger scale to ensure their accuracy on an industrial scale.