Glycerol steam reforming over Ni/γ-Al2O3 catalysts modified by metal oxides

被引：24

作者：

Huang, Zun-Yu ^{[1
]}

Xu, Cheng-Hua ^{[1
]}

Liu, Chuan-Qi ^{[1
]}

Xiao, Hui-Wen ^{[1
]}

Chen, Jun ^{[1
]}

Zhang, Yong-Xiang ^{[1
]}

Lei, Ya-Cong ^{[1
]}

机构：

[1] Chengdu Univ Informat Technol, Air Environm Modeling & Pollut Controlling Key La, Chengdu 610225, Peoples R China

来源：

KOREAN JOURNAL OF CHEMICAL ENGINEERING | 2013年 / 30卷 / 03期

关键词：

Glycerol; Steam Reforming; Syngas; Hydrogen; PLATINUM-RHENIUM CATALYSTS; CARBON-SUPPORTED PLATINUM; HYDROGEN-PRODUCTION; SYNTHESIS GAS; BED REACTOR; NI; METHANE; SYNGAS; GASIFICATION; CONVERSION;

D O I：

10.1007/s11814-012-0204-z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The metal oxides modified Ni/gamma-Al2O3 catalysts for glycerol steam reforming were prepared by impregnation. Characterization results of fresh catalysts indicated that the molybdates modification abated the acidity and the stronger metal-support interaction of Ni/gamma-Al2O3 catalysts, leading to a stable catalytic activity. Especially, NiMoLa-CaMg/gamma-Al2O3 (NiMoLa/CMA) catalyst exhibited no deactivation along with glycerol complete conversion to stable gaseous products containing 69% H-2, 20% CO and 10% CO2 during time-on-stream of 42 h. TPO of spent Ni/gamma-Al2O3 catalysts modified by different components showed that the carbon deposit on acidic sites and NiAl2O4 species led to catalysts deactivation. A lower reforming temperature and a higher LHSV and glycerol content were helpful to the production of syngas from GSR over NiMoLa/CMA; the reverse conditions would improve the formation of H-2.

引用

页码：587 / 592

页数：6

共 23 条

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