Syngas production via combined Oxy-CO2 reforming of methane over Gd2O3-modified Ni/SiO2 catalysts in a fluidized-bed reactor

被引：44

作者：

Guo, Jianzhong ^{[1
,2
]}

Hou, Zhaoyin ^{[1
]}

Gao, Jing ^{[1
]}

Zheng, Xiaoming ^{[1
]}

机构：

[1] Zhejiang Univ, Inst Catalysis, Dept Chem, Hangzhou 310028, Peoples R China

[2] Zhejiang Forestry Univ, Dept Chem, Linan 311300, Peoples R China

来源：

FUEL | 2008年 / 87卷 / 07期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.fuel.2007.06.018

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：

In this research, Ni/SiO2 catalyst was modified with different amount of Gd2O3 and characterized with temperature-programmed desorption of CO2 (CO2-TPD) and NH3 (NH3-TPD), temperature-programmed reduction with H2 (H2-TPR) and X-ray diffraction (XRD). It was found that Gd2O3-modified Ni/SiO2 catalysts possessed higher CO2 adsorption and activation ability due to the formation of surface carbonate species. H2-TPR and XRD characterizations found that the strong interaction among nickel, Gd2O3 and SiO2 took place, which improved the dispersion of Ni. Gd2O3-modified Ni/SiO2 catalysts exhibited higher activity and stability for the combined oxy-CO2 reforming of methane in fluidized-bed reactor. The H2/CO ratio in produced syngas could be controlled via controlling reaction temperature and CO2/O2 ratio in feed. © 2007 Elsevier Ltd. All rights reserved.

引用

页码：1348 / 1354

页数：7

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