Impact of Various Silicon Sources on the Synthesis of Mordenite and Differences in the Carbonylation Reaction of Dimethyl Ether

doi:10.1007/s40242-024-4131-4

高等学校化学研究 ›› 2025, Vol. 41 ›› Issue (1): 59-65.doi: 10.1007/s40242-024-4131-4

Impact of Various Silicon Sources on the Synthesis of Mordenite and Differences in the Carbonylation Reaction of Dimethyl Ether

CHEN Long^1,2, WANG Yunzheng², LV Jiangang², YANG Weimin^1,2

1. School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China;
2. Sinopec Shanghai Research Institute of Petrochemical Technology Co., Ltd., Shanghai 201208, P. R. China

收稿日期:2024-05-21 出版日期:2025-02-01 发布日期:2025-01-18
通讯作者: LV Jiangang,lvjg.sshy@sinopec.com;YANG Weimin,yangwm.sshy@sinopec.com E-mail:lvjg.sshy@sinopec.com;yangwm.sshy@sinopec.com

Impact of Various Silicon Sources on the Synthesis of Mordenite and Differences in the Carbonylation Reaction of Dimethyl Ether

CHEN Long^1,2, WANG Yunzheng², LV Jiangang², YANG Weimin^1,2

1. School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China;
2. Sinopec Shanghai Research Institute of Petrochemical Technology Co., Ltd., Shanghai 201208, P. R. China

Received:2024-05-21 Online:2025-02-01 Published:2025-01-18
Contact: LV Jiangang,lvjg.sshy@sinopec.com;YANG Weimin,yangwm.sshy@sinopec.com E-mail:lvjg.sshy@sinopec.com;yangwm.sshy@sinopec.com

摘要/Abstract

摘要： This study introduces an innovative method for synthesizing mordenite (MOR) by employing a combination of water glass and fumed silica as the silica source. The zeolite produced through this method exhibits a smaller grain size, a larger specific surface area, and a greater number of Brønsted acid sites compared to the conventionally synthesized mordenite using silica sol. Furthermore, the chemical environment of framework Al in MOR zeolites is influenced by different silica sources, leading to varied acid properties between the two MOR zeolites, which results in an enhanced activity of dimethyl ether carbonylation from 50% to over 83%.

关键词: Mordenite, Silica source, DME carbonylation

Abstract: This study introduces an innovative method for synthesizing mordenite (MOR) by employing a combination of water glass and fumed silica as the silica source. The zeolite produced through this method exhibits a smaller grain size, a larger specific surface area, and a greater number of Brønsted acid sites compared to the conventionally synthesized mordenite using silica sol. Furthermore, the chemical environment of framework Al in MOR zeolites is influenced by different silica sources, leading to varied acid properties between the two MOR zeolites, which results in an enhanced activity of dimethyl ether carbonylation from 50% to over 83%.

Key words: Mordenite, Silica source, DME carbonylation

CHEN Long, WANG Yunzheng, LV Jiangang, YANG Weimin. Impact of Various Silicon Sources on the Synthesis of Mordenite and Differences in the Carbonylation Reaction of Dimethyl Ether[J]. 高等学校化学研究, 2025, 41(1): 59-65.

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Impact of Various Silicon Sources on the Synthesis of Mordenite and Differences in the Carbonylation Reaction of Dimethyl Ether

Impact of Various Silicon Sources on the Synthesis of Mordenite and Differences in the Carbonylation Reaction of Dimethyl Ether

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