标题:Steam reforming of acetic acid for hydrogen production over attapulgite and alumina supported Ni catalysts: Impacts of properties of supports on catalytic behaviors
作者:Zhang, Chenting; Hu, Xun; Yu, Zhenjie; Zhang, Zhanming; Chen, Guozhu; Li, Cuncheng; Liu, Qing; Xiang, Jun; Wang, Yi; Hu, Song
通讯作者:Hu, Xun;Hu, X;Hu, S
作者机构:[Zhang, Chenting; Hu, Xun; Yu, Zhenjie; Zhang, Zhanming] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China.; [Chen, Guozhu; Li 更多
会议名称:6th International Conference on Energy, Engineering and Environmental Engineering (ICEEEE)
会议日期:AUG 25-26, 2018
来源:INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
出版年:2019
卷:44
期:11
页码:5230-5244
DOI:10.1016/j.ijhydene.2018.09.071
关键词:Acetic acid; Attapulgite; Alumina; Steam reforming; Coke
摘要:In this study, the potential of attapulgite (ATTP) as the support of nickel catalysts for steam reforming of acetic acid to produce hydrogen were evaluated. Ni/Al2O3 was prepared and evaluated for comparison. The results showed that ATTP had a much lower specific surface area and a lower thermal stability than alumina. Nevertheless, the interaction between nickel and ATTP was much weaker than that of nickel with alumina. As a result, the Ni/ATTP catalyst had superior activity than the Ni/Al(2)O(3)catalyst, especially at low nickel loading. Ni./Al2O3 was more stable than Ni/ATTP. The fibrous coke, which was probably catalytic coke, formed over Ni/Al2O3 did not cause the rapid deactivation of the catalyst, while the amorphous coke formed over Ni/ATTP catalyst, which was probably the polymeric coke, rapidly deactivated the catalyst. The coke species contained COOH, C=O, aliphatic structure and aromatic ring structures. In addition, the effects of these two carriers on the steam reforming mechanism were investigated by the in-situ DRIFTS. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
收录类别:CPCI-S;EI;SCIE
资源类型:会议论文;期刊论文
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