CO2 reforming of CH4 over xerogel Ni-Ti and Ni-Ti-Al catalysts

被引：12

作者：

Sun, Haijun ^{[1
]}

Huang, Jian ^{[1
]}

Wang, Hui ^{[1
]}

Zhang, Jianguo ^{[1
]}

机构：

[1] Univ Saskatchewan, Dept Chem Engn, Saskatoon, SK S7N 5A9, Canada

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2007年 / 46卷 / 13期

关键词：

D O I：

10.1021/ie070049e

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

CO2 reforming of CH4 reaction was studied over the Ni based xerogel catalysts. The Ni-Ti and Ni-Ti-Al xerogel composites were prepared using the sol-gel method and reduced in H-2-N-2 mixture gas. The reaction was conducted at 973 K in a micropacked-bed reactor. Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD), and thermogravimetric/differential thermal analysis (TG/DTA) were used to characterize the fresh and spent (after reaction) catalyst samples. Compared with the published data, it has been found that the carbon deposition on both Ni-Ti and Ni-Ti-Al xerogel catalysts is effectively suppressed. Ni-Ti-Al xerogel catalyst reveals higher activity and longer stability than Ni-Ti xerogel catalyst does, due to its larger surface area and more resistance to Ti reduction. However, further study is anticipated to eliminate the carbon deposition on these xerogel catalysts.

引用

页码：4444 / 4450

页数：7

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