Development of 10-kWe preferential oxidation system for fuel cell vehicles

Seong Ho Lee, Jaesung Han, Kwan Young Lee

Research output: Contribution to journalArticlepeer-review

71 Citations (Scopus)

Abstract

A preferential oxidation (PROX) reactor for a 10-kWe polymer electrolyte membrane fuel cell (PEMFC) system is developed. Pt-Ru/Al2O3 catalyst powder, with a size of 300-600 μm is applied for the PROX reaction. To minimize pressure drop and to avoid hot spots in the catalyst bed, the reactor is designed as a dual-staged, multi-tube system. The performance of the 10-kWe PROX unit is evaluated by feeding simulated gasoline reformate which contains 1.2 wt.% carbon monoxide (CO). The CO concentration of the treated reformate is lower than 20 ppm in the steady-state and is under 30 ppm at 65% load change. Hydrogen loss in the steady-state is about 1.5% and the pressure drop across the reactor is 4 psi. Start-up characteristics of the 10-kWe PROX system are also investigated. It takes 3 min to reduce the CO concentration to below 20 ppm. Several controllable factors are found to shorten the start-up time.

Original languageEnglish
Pages (from-to)394-402
Number of pages9
JournalJournal of Power Sources
Volume109
Issue number2
DOIs
Publication statusPublished - 2002 Jul 1

Bibliographical note

Funding Information:
This work was performed as a part of the KATECH G7 project and the authors are grateful to the Korean government for financial support to undertake this study. K.Y. Lee also appreciates for the support by research grants from the Korea Science and Engineering Foundation (KOSEF) through the Applied Rheology Center (ARC) at Korea University.

Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.

Keywords

  • Carbon monoxide
  • Fuel cell
  • Platinum-ruthenium catalyst
  • Polymer electrolyte
  • Preferential oxidation reaction

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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