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Effect of Oxalic Acid Treatment on Mordenite Structure and Catalytic Performance of Dimethyl Ether Carbonylation
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Xiaosheng WANG1, Shaoduo LIU1, Tao YANG1, Ranjia LI1, Changchun YU1, Yuxiang LIU2, Zhengqiu XIE3, Yongqiang WANG3, Xiaojiao LI4, 5
Journal of the Chinese Ceramic Society | 2022, 50(7) : 1955 - 1963
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Journal of the Chinese Ceramic Society | 2022, 50(7): 1955-1963
• Research Articles •
Effect of Oxalic Acid Treatment on Mordenite Structure and Catalytic Performance of Dimethyl Ether Carbonylation
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Xiaosheng WANG1, Shaoduo LIU1, Tao YANG1, Ranjia LI1, Changchun YU1, Yuxiang LIU2, Zhengqiu XIE3, Yongqiang WANG3, Xiaojiao LI4, 5
Affiliations
  • 1.College of New Energy and Materials, China University of Petroleum-Beijing, Beijing 102249, China
  • 2.College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China
  • 3.Yueyang Jucheng Chemical Co. Ltd., Yueyang 414409, Hunan, China
  • 4.Refining Department, China Petroleum and Chemical Corporation, Beijing 100327, China
  • 5.College of Economics and Management, China University of Petroleum-Beijing, Beijing 102249, China

    • WANG Xiaosheng(1988-), male, Ph.D., Lecturer. E-mail:

About Author:

WANG Xiaosheng(1988-), male, Ph.D., Lecturer. E-mail:

Published: 2022-07-20 doi: 10.14062/j.issn.0454-5648.20220088
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Mordenite is highly active for the carbonylation of dimethyl ether reaction, and the regulation of its acid sites is an effective way to improve its catalytic performance. In this paper, a series of mordenite was subjected to the post-treatment of oxalic acid solution. The changes in the structure and acid sites were characterized by X-ray diffraction, N2 adsorption-desorption, scanning electron microscopy, NH3-temperature-programmed desorption and Py-infrared spectroscopy, respectively. The results show that the overall relative crystallinity and crystal phase of mordenite remain stable. However, the acid wash post-treatment can effectively remove parts of the acid sites through "etching" or complexation, especially those located in the twelve-membered ring channels. Meanwhile, it can create a certain amount of mesopores inside the particles, leading to an increase of the mesopore volume. The catalytic test results of dimethyl ether carbonylation reaction indicate that the sample treated with a suitable concentration of oxalic acid solution can effectively improve the dimethyl ether carbonylation activity. The dimethyl ether conversion significantly increases, despite the methyl acetate selectivity only slightly decreases. However, parts of the active sites responsible for the carbonylation reaction are removed when treated with high-concentration oxalic acid solution, resulting in a decrease in the catalytic activity. This research provides a simple and effective method for the regulation of the acid sites in mordenite and the improvement of its dimethyl ether carbonylation activity.

acid treatment  /  mordenite  /  dimethyl ether  /  carbonylation
王晓胜, 刘少铎, 杨韬, 李然家, 余长春, 刘毓翔, 谢正求, 王永强, 李晓娇. 草酸处理对丝光沸石催化二甲醚羰化反应性能的影响. 硅酸盐学报, 2022 , 50 (7) : 1955 -1963 . DOI: 10.14062/j.issn.0454-5648.20220088
Xiaosheng WANG, Shaoduo LIU, Tao YANG, Ranjia LI, Changchun YU, Yuxiang LIU, Zhengqiu XIE, Yongqiang WANG, Xiaojiao LI. Effect of Oxalic Acid Treatment on Mordenite Structure and Catalytic Performance of Dimethyl Ether Carbonylation[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (7) : 1955 -1963 . DOI: 10.14062/j.issn.0454-5648.20220088
Appendix
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Year 2022 volume 50 Issue 7
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Article Info
doi: 10.14062/j.issn.0454-5648.20220088
  • Receive Date：2022-01-28
  • Online Date：2026-10-20
  • Published：2022-07-20
Article Data
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History
  • Received：2022-01-28
  • Revised：2022-03-03
Funding
Affiliations
    1.College of New Energy and Materials, China University of Petroleum-Beijing, Beijing 102249, China
    2.College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China
    3.Yueyang Jucheng Chemical Co. Ltd., Yueyang 414409, Hunan, China
    4.Refining Department, China Petroleum and Chemical Corporation, Beijing 100327, China
    5.College of Economics and Management, China University of Petroleum-Beijing, Beijing 102249, China

Corresponding:

YU Changchun (1969-), male, Ph.D., Associate Professor; E-mail:
LIU Yuxiang (1989-), male, Ph.D., Associate Professor.
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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