期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 20, 期 1, 页码 284-289出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2013.03.036
关键词
Dry reforming; Carbon deposition; Gamma-alumina; Silica; Magnesia; Support
Carbon dioxide reforming of methane was performed over Co-Ru-Zr catalyst (0.4 wt% Ru added, calcined at 400 degrees C) with different supports (SiO2, gamma-Al2O3 and MgO) in order to study their deactivation. The Co-Ru-Zr/gamma-Al2O3 showed the highest activity at first, but severe deactivation was observed due to carbon deposition. Co-Ru-Zr/MgO exhibited low activity because of its low specific surface area. However, the high conversions could be obtained in Co-Ru-Zr/SiO2, and activity was kept almost constantly for 500 h reaction. The characteristics of the catalysts, before and after the reaction, were investigated employing BET, XRD, TPR, TGA-DTA and TEM. (C) 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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