Dehydration-hydrogen transfer of glycerol to allyl alcohol over bifunctional molybdenum/vanadium-dolomite catalyst

被引：0
|
作者：
Zhu B. [1 ]
Fu C. [1 ]
Li K. [1 ]
Qiu M. [1 ]
Li C. [1 ]
Zhou C. [1 ]
机构：
[1] College of Chemical Engineering, Zhejiang University of Technology, Hangzhou
来源：
Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | 2023年 / 37卷 / 05期
关键词：
allyl alcohol; dehydration-hydrogen transfer; dolomite; glycerol; molybdenum/vanadium oxide;
D O I：
10.3969/j.issn.1003-9015.2023.05.011
中图分类号：
学科分类号：
摘要：
Bifunctional catalysts MoO/VO-CD-T(CD: calcined dolomite and T: calcined temperature) with both basic sites and redox sites were prepared by impregnation method. The results showed that the molybdenum/vanadium oxides on the catalyst surface were mainly composed of MoO3 and V2O5, and the formation of different phases between calcined dolomite and molybdenum/vanadium oxides could adjust the stability and redox performance of the catalyst. The allyl alcohol was more favorable to be formed over the VO-CD-500 catalyst in air atmosphere, mainly because the oxygen in air could inhibit the reduction of high-valence vanadium. The MoO-CD-500 catalyst had a low activity to allyl alcohol because the reducibility of Mo6+ was weak. 2% VO-CD-500 catalyst showed the best catalytic performance under the condition of 20% glycerol solution and reaction temperature of 320 ℃, with a glycerol conversion of 52.4% and a selectivity to allyl alcohol of 37.4%. © 2023 Zhejiang University. All rights reserved.
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页码：787 / 797
页数：10
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