文献类型：期刊文献

英文题名：Preparation, characterization and deactivation studies of Co-Mo/γ-Al₂O₃ deoxidizing catalyst

作者：Wang, XT; Liu, GS; Yu, JG; Rodrigues, AE

机构：[1]Univ Porto, Fac Engn, Dept Chem Engn, LSRE, P-4200465 Oporto, Portugal;[2]E China Univ Sci & Technol, LRUE, Shanghai 200237, Peoples R China

年份：2004

卷号：270

期号：1-2

起止页码：143

外文期刊名：APPLIED CATALYSIS A-GENERAL

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000222892800014)】；

语种：英文

外文关键词：Co-Mo/gamma-Al2O3 catalyst; deoxidizing catalyst; deactivation; reactivation

摘要：A deoxidizing catalyst was prepared in this paper. Several characterization techniques (XRD, SEM-EDS, TEM, TPD and TPR) were used to study its structure and properties. A normal pressure micro-reactor was built to study its deoxidizing performance. Results show that when inlet O-2 concentration was 0.1%, space velocity was 3000-12000 h(-1) and operation temperature was above 80 degreesC, the outlet residual O-2 can be as low as 1.0 x 10(-6) (v/v). 300 h continuous operation shows that its deoxidizing activity was stable. Through comparison of the deoxidizing activities for fresh and deactivated catalyst and by simulating the water vapor contents in system, the mechanism of deactivation and reactivation was studied. (C) 2004 Elsevier B.V. All rights reserved.