Acid activation of montmorillonite and its application for production of hydrogen via steam reforming of dimethyl ether

被引：0

作者：

Gao T.-Y. ^{[1
]}

Zhao Y.-H. ^{[1
]}

Zheng Z. ^{[1
]}

Zhang Q.-J. ^{[1
]}

Liu H.-M. ^{[1
]}

Wang H. ^{[1
]}

Feng X.-Q. ^{[1
]}

Meng Q.-R. ^{[1
]}

机构：

[1] School of Chemistry & Environmental Engineering, Liaoning University of Technology, Jinzhou

来源：

Zhao, Yong-Hua (lgdzyh@163.com) | 1600年 / Science Press卷 / 49期

基金：

中国国家自然科学基金;

关键词：

Acid-activated montmorillonite; Cu/ZnO/Al[!sub]2[!/sub]O[!sub]3[!/sub; Dimethyl ether; Hydrogen production; Steam reforming;

D O I：

10.1016/S1872-5813(21)60103-2

中图分类号：

学科分类号：

摘要：

A series of acid-activated montmorillonites (Acid-MMTs) were prepared via Na-montmorillonite treated with nitric acid solution at different treatment temperature and time. And the Acid-MMTs used as solid acid were physically mixed with commercial Cu/ZnO/Al2O3 to obtain bifunctional catalysts for steam reforming of dimethyl ether (SRD) reaction. The results showed that the structure, texture and acidity of Acid-MMTs were significantly changed compared with Na-MMT, which was dependent on the acid treatment conditions. The structure and acidity of Acid-MMTs obviously affected the SRD performance over bifunctional catalyst. The bifunctional catalyst composed of the Na-MMT activated in 20% nitric acid solution at 80 ℃ for 12 h (Acid-MMT-80/12) and Cu/ZnO/Al2O3 exhibited the best SRD performance, with the dimethyl ether conversion and H2 yield reaching 97% and 94% under the conditions of p =0.1 MPa, t =350 ℃, GHSV=3000 h−1, respectively, and DME conversion and H2 yield remained basically constant in 10 h, indicating that the catalyst had better stability. © 2021, Science Press. All right reserved.

引用

页码：1495 / 1503

页数：8

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