中国化学工程学报(英文版)2024，Vol.66Issue(2) ：216-223.DOI:10.1016/j.cjche.2023.10.008

Synthesis of mordenite by solvent-free method and its application in the dimethyl ether carbonylation reaction

Yinghui Liu Shaoduo Liu Xiaosheng Wang Hongjing Wang Ranjia Li Changchun Yu Chunming Xu Yuxiang Liu Zhengqiu Xie Yongqiang Wang Pan Tang
中国化学工程学报(英文版)2024，Vol.66Issue(2) ：216-223.DOI:10.1016/j.cjche.2023.10.008
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Synthesis of mordenite by solvent-free method and its application in the dimethyl ether carbonylation reaction

Yinghui Liu 1Shaoduo Liu 2Xiaosheng Wang 1Hongjing Wang 1Ranjia Li 1Changchun Yu 1Chunming Xu 1Yuxiang Liu 3Zhengqiu Xie 4Yongqiang Wang 4Pan Tang4
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作者信息

  • 1. State Key Laboratory of Heavy Oil Processing,College of New Energy and Materials,China University of Petroleum-Beijing,Beijing 102249,China
  • 2. State Key Laboratory of Heavy Oil Processing,College of New Energy and Materials,China University of Petroleum-Beijing,Beijing 102249,China;Synfuels China Technology Co.,Ltd,Beijing 101400,China
  • 3. College of Chemical Engineering,Qingdao University of Science & Technology,Qingdao 266042,China
  • 4. Yueyang Jucheng Chemical Co.,Ltd,Yueyang 414009,China
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Abstract

Mordenite with different Si/Al ratios were synthesized by solvent-free method and used for dimethyl ether(DME)carbonylation reaction.The influence of Si/Al ratio in the feedstock on the structure,porosity and acid sites were systematically investigated.The characterization results showed that with the in-crease of Si/Al ratio in the feedstock,part of silicon species fail to enter the skeleton and the specific surface area and pore volume of the samples decreased.The amount of weak acid and medium strong acid decreased alongside with the increasing Si/Al ratio,and the amount of strong acid slightly increased.The Al atoms preferentially enter the strong acid sites in the 8 member ring(MR)channel during the crystallization process.The high Si/Al ratio sample had more acid sites located in the 8 MR channel,leading to more active sites for carbonylation reaction and higher catalytic performance.Appropriately increasing the Si/Al ratio was beneficial for the improvement of carbonylation reaction activity over the mordenite(MOR)catalyst.

Key words

Carbonylation/Dimethyl ether/Solvent-free/Zeolite/Synthesis/Catalysis

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基金项目

China National Natural Science Foundation(22008260)

China National Natural Science Foundation(21908123)

出版年

2024
中国化学工程学报(英文版)
中国化工学会

中国化学工程学报(英文版)

CSTPCDEI
影响因子：0.818
ISSN：1004-9541
参考文献量36
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