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

69 Citations (Scopus)


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
Issue number2
Publication statusPublished - 2002 Jul 1


  • 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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