The effect of La on the hydrotalcite derived Ni catalysts for dry reforming of methane

被引：11

作者：

Kalai, Dori Yosef ^{[1
]}

Stangeland, Kristian ^{[1
]}

Li, Hailong ^{[2
]}

Yu, Zhixin ^{[1
]}

机构：

[1] Univ Stavanger, Dept Petr Engn, N-4036 Stavanger, Norway

[2] Malardalen Univ, Dept Energy Bldg & Environm, S-73123 Vasteras, Sweden

来源：

PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE ON APPLIED ENERGY | 2017年 / 142卷

关键词：

Hydrotalcite; Nickel catalyst; La-promoter; dry reforming;

D O I：

10.1016/j.egypro.2017.12.267

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A series of 20Ni-Mg-Al hydrotalcite-like (HT) precursors were prepared to study the influence of lanthanum (La) on the catalytic activity of the catalysts in the dry reforming of methane (DRM). The catalysts were characterized by N2 adsorption-desorption, X-ray diffraction (XRD) and temperature-programmed reduction (TPR). All catalysts presented ordered mesoporous structures with a large specific surface area. XRD confirmed the presence of HT structure for all of the precursors while the La promotion resulted in an additional phase of Lanthanum carbonate hydroxide. TPR study showed larger reduction degree for the catalysts but also reduction peaks that are shifted to higher temperatures. DRM reactions at 600 and 750 degrees C revealed that the DRM activity was increased by the addition of La, while the stability of the catalysts was reduced at 600 degrees C. (C) 2017 The Authors. Published by Elsevier Ltd.

引用

页码：3721 / 3726

页数：6

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