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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2004

Autores

Xiangtian Wang (Autor) Outra; Gousheng Liu (Autor) Outra; Jianguo Yu (Autor) Outra; Alírio Rodrigues (Autor) FEUP

Revista

Título: Applied Catalysis A: General

Vol. 270 Nº 1

Páginas: 143-149

ISSN: 0926-860X

Editora: Elsevier

Indexação

ISI Proceedings

ISI Web of Knowledge - 2 Citações

Scopus - 2 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia química

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7