CLC number: TQ032.4
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2021-01-14
Cited: 0
Clicked: 3023
Bing-jie Zhou, Zhi-xiang Xi, Yue Yu, Bin-bo Jiang, Jing-dai Wang, Zu-wei Liao, Zheng-liang Huang, Yong-rong Yang. Modification of acidity in HZSM-5 zeolite for methane-methanol co-reaction[J]. Journal of Zhejiang University Science A, 2021, 22(2): 106-115.
@article{title="Modification of acidity in HZSM-5 zeolite for methane-methanol co-reaction",
author="Bing-jie Zhou, Zhi-xiang Xi, Yue Yu, Bin-bo Jiang, Jing-dai Wang, Zu-wei Liao, Zheng-liang Huang, Yong-rong Yang",
journal="Journal of Zhejiang University Science A",
volume="22",
number="2",
pages="106-115",
year="2021",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2000126"
}
%0 Journal Article
%T Modification of acidity in HZSM-5 zeolite for methane-methanol co-reaction
%A Bing-jie Zhou
%A Zhi-xiang Xi
%A Yue Yu
%A Bin-bo Jiang
%A Jing-dai Wang
%A Zu-wei Liao
%A Zheng-liang Huang
%A Yong-rong Yang
%J Journal of Zhejiang University SCIENCE A
%V 22
%N 2
%P 106-115
%@ 1673-565X
%D 2021
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2000126
TY - JOUR
T1 - Modification of acidity in HZSM-5 zeolite for methane-methanol co-reaction
A1 - Bing-jie Zhou
A1 - Zhi-xiang Xi
A1 - Yue Yu
A1 - Bin-bo Jiang
A1 - Jing-dai Wang
A1 - Zu-wei Liao
A1 - Zheng-liang Huang
A1 - Yong-rong Yang
J0 - Journal of Zhejiang University Science A
VL - 22
IS - 2
SP - 106
EP - 115
%@ 1673-565X
Y1 - 2021
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A2000126
Abstract: A co-reaction of methane with methanol over zeolite catalysts has emerged as a new approach to the long-standing challenge of methane transformation. However, the effect of catalyst acid properties on the co-reaction has been rarely studied. In this study, a series of HZSM-5 zeolites with comparable diffusion abilities and various acidities were synthesized directly through steaming with 100% water vapor at 693 K. The co-reaction of methane and methanol was subsequently evaluated. Brønsted acidity at 0.262 mmol/g was detected to reach the maximum methane conversion of 5.42% at 673 K, which was also the odd point in the relationship between acid concentration and C4 hydrogen transfer index. Moreover, the influence of methanol feed was investigated over parent and steamed ZSM-5 catalyst, with results showing that excessive acid sites or methanol molecules reduce methane conversion. It is proposed that acid sites adsorbed with methanol molecules construct the methane activation sites. Hence, a proper design of zeolite acidity should be achieved to obtain higher methane conversion in the co-reaction process.
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