A Review on Preferential Oxidation of Carbon Monoxide in Hydrogen Rich Gases

A. Mishra -  Department of Chemical Engineering and Technology, Institute of Technology, Banaras Hindu University, India
*R. Prasad -  Department of Chemical Engineering and Technology, Institute of Technology, Banaras Hindu University, India
Received: 22 Oct 2010; Published: 16 May 2011.
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Abstract

In this review, recent works on the preferential oxidation of carbon monoxide in hydrogen rich gases for fuel cell applications are summarized. H2 is used as a fuel for polymer-electrolyte membrane fuel cell (PEMFC). It is produced by reforming of natural gas or liquid fuels followed by water gas shift reaction. The produced gas consists of H2, CO, and CO2. In which CO content is around 1%, which is highly poisonous for the Pt anode of the PEMFC so that further removal of CO is needed. Catalytic preferential oxidation of CO (CO-PROX) is one of the most suitable methods of purification of H2 because of high CO conversion rate at low temperature range, which is preferable for PEMFC operating conditions. Catalysts used for COPROX are mainly noble metal based; gold based and base metal oxide catalysts among them Copper-Ceria based catalysts are the most appropriate due to its low cost, easy availability and result obtained by these catalysts are comparable with the conventional noble metal catalysts. Copyright © 2011 BCREC UNDIP. All rights reserved

(Received: 22nd October 2010, Revised: 12nd January 2011, Accepted: 19th January 2011)

[How to Cite: A. Mishra, R. Prasad. (2011). A Review on Preferential Oxidation of Carbon Monoxide in Hydrogen Rich Gases. Bulletin of Chemical Reaction Engineering & Catalysis, 6 (1): 1-14. doi:10.9767/bcrec.6.1.191.1-14]

[How to Link / DOI: http://dx.doi.org/10.9767/bcrec.6.1.191.1-14 || or local:  http://ejournal.undip.ac.id/index.php/bcrec/article/view/191]

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Keywords
Hydrogen purification; CO-PROX; PEMFC; Methods for CO-removal; Catalysts for CO- PROX

Article Metrics:

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