Preparation, characterization and deactivation studies of Co-Mo/gamma-Al2O3 deoxidizing catalyst

• Type: Article in International Scientific Journal
• Date: 2004

Authors

Xiangtian Wang (Author) Other; Gousheng Liu (Author) Other; Jianguo Yu (Author) Other; Alírio Rodrigues (Author) FEUP

Journal

Title: Applied Catalysis A: General

Vol. 270 No. 1

Pages: 143-149

ISSN: 0926-860X

Publisher: Elsevier

Indexing

ISI Proceedings

ISI Web of Knowledge - 2 Citations

Scopus - 2 Citations

Scientific classification

CORDIS: Technological sciences > Engineering > Chemical engineering

Other information

Authenticus ID: P-000-8YD

DOI: 10.1016/j.apcata.2004.04.031

Resumo (PT): 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.

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7