Performance of 3%Mo/ZSM-5 catalyst in the presence of water during methane aromatization in supersonic jet expansion

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 2O xC y and β-Mo 2C species are catalytically active for methane aromatization under...

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Bibliographic Details
Published in:AIChE Journal
Main Authors: Cheung, AC, Au, CT, Li, L, Tian, L, Liu, BS
Format: Article in Journal/Newspaper
Language:English
Published: John Wiley & Sons, Inc. The Journal's web site is located at http://www.aiche.org 2011
Subjects:
Methane hydrate utilization
Fuels
Methane aromatization
Time-of-flight mass-spectrometry
Catalysis
Mo/ZSM-5 catalyst
Supersonic jet expansion
Methane hydrate
Online Access:https://doi.org/10.1002/aic.12385
http://hdl.handle.net/10722/148641
Description
Summary: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 2O xC y and β-Mo 2C 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 2O xC 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). link_to_subscribed_fulltext

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