期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 34, 期 21, 页码 8921-8928出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2009.08.068
关键词
Catalysts synthesis method; Water Gas Shift; Fe-Cr based catalysts; Gasification
资金
- ministry of science and innovation [ENE2004-07758-C02-01, ENE2004-07758-C02-02]
In this work the performance of Fe-Cr based WGS catalysts synthesized following two different methods (co-precipitation and oxy-precipitation) is studied under a wide range of operating conditions. A commercial Fe-Cr based WGS catalyst is used for comparison. The activity of the catalysts has been studied on simulated gases under conditions typical of oxygen pressurized gasification. The influence of main operating parameters, including temperature, space velocity and excess steam is evaluated in terms of hydrogen production and CO conversion. Catalytic performance has been evaluated from 200 degrees C to 500 degrees C, using gas space velocities between 2885 and 10000 h(-1) and steam to carbon monoxide ratios from 2 to 6.7. According to the results obtained in this work, the oxy-precipitation method has provided a suitable approach to synthesize highly active Fe-Cr based WGS catalysts. (C) 2009 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
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