Investigation of bio-ethanol steam reforming over cobalt-based catalysts

被引：161

作者：

Song, Hua ^{[1
]}

Zhang, Lingzhi ^{[1
]}

Watson, Rick B. ^{[1
]}

Braden, Drew ^{[1
]}

Ozkan, Urnit S. ^{[1
]}

机构：

[1] Ohio State Univ, Dept Chem & Biomol Engn, Heterogeneous Catal Res Grp, Columbus, OH 43210 USA

来源：

CATALYSIS TODAY | 2007年 / 129卷 / 3-4期

关键词：

cobalt catalyst; zirconia; alumina; titania; bio-ethanol steam reforming; TGA; H-2; chemisorption; Raman; DRIFTS; temperature-programmed reaction;

D O I：

10.1016/j.cattod.2006.11.028

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The catalytic performance of cobalt catalysts supported on gamma-Al2O3, TiO2, ZrO2 were studied for bio-ethanol steam reforming (BESR) reaction. The supported catalysts (10 wt%Co) were prepared by impregnation and characterized through Thermogravimetric analysis (TGA), H-2 chemisorption, laser Raman Spectroscopy, Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFrS), and temperature-programmed reaction (TPRxn). The metallic cobalt sites were found to correlate with the BESR reaction activity. The reaction and H2 chemisorption showed that ZrO2 supported catalyst showed the best dispersion and best catalytic activity. Over the 10% Co/ZrO2 catalyst, using a H2O:EtOH:inert molar ratio of 10:1:75 and a GHSV = 5000 h(-1), 100% ethanol conversion and a yield of 5.5 mol H-2/Mol EtOH were obtained at 550 degrees C and atmospheric pressure. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：346 / 354

页数：9

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