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CO selective methanation in H2-rich gas for fuel cell application: Microchannel reactor performance with Ru-based catalysts
- Source :
-
Chemical Engineering Journal . Mar2011, Vol. 167 Issue 2/3, p616-621. 6p. - Publication Year :
- 2011
-
Abstract
- Abstract: The present paper deals with the study on complete removal of CO in H2-rich gas stream through CO-SMET over Ru-based catalysts supported on γ-Al2O3 and CeO2 carriers. All the catalysts, loaded with 3% Ru, were prepared by a conventional impregnation method and their CO removal performance was determined at the powder level in a fixed bed micro reactor. The 3% Ru–γAl2O3 catalyst showed the best performance; consequently, it was deposited on microchannel metal plates reactor. With a catalyst load on the microchannel plates of 5mgcm−2 the performance was poor as complete CO conversion was not reached and also CO2 methanation was present. Increasing Ru load to 5%, the performance further worsened, the CO conversion decreased and higher amount of methane was produced. The catalytic activity on microchannel metal plates reactor was improved with the 3% Ru–γAl2O3 catalyst by doubling the its load on the surface (10mgcm−2): the residual CO concentration decreased to about 100–150ppmv at 310°C, but a large amount of methane was formed also by the CO2 methanation, thus reducing catalyst selectivity. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 13858947
- Volume :
- 167
- Issue :
- 2/3
- Database :
- Academic Search Index
- Journal :
- Chemical Engineering Journal
- Publication Type :
- Academic Journal
- Accession number :
- 59187670
- Full Text :
- https://doi.org/10.1016/j.cej.2010.09.086