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Performance of 3%Mo/ZSM‐5 catalyst in the presence of water during methane aromatization in supersonic jet expansion
Author(s) -
Liu B.S.,
Tian L.,
Li L.,
Au C.T.,
Cheung A.S.C.
Publication year - 2011
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.12385
Subject(s) - aromatization , methane , catalysis , supersonic speed , chemistry , hydrate , chemical engineering , jet (fluid) , carbon fibers , inorganic chemistry , materials science , organic chemistry , composite number , composite material , thermodynamics , physics , engineering
The influence of water in the CH 4 feed on the performance of 3%Mo/ZSM‐5 catalyst during methane direct aromatization under supersonic jet expansion (SJE) condition was investigated. We observed that both surface Mo 2 O x C y and β‐Mo 2 C species are catalytically active for methane aromatization under SJE condition. The presence of water can promote the removal of surface carbon before the generation of aromatic‐type and/or graphitic carbon. In appropriate amount, water can improve the stability of surface Mo 2 O x C y , and hence resulting in better catalytic performance. The study provided valuable information relevant to the direct utilization of methane hydrate. © 2010 American Institute of Chemical Engineers AIChE J, 2011
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