Transient CO Preferential Oxidation (PrOx) for PEM Fuel Cell

Paper #:
  • 2000-01-0378

Published:
  • 2000-03-06
Citation:
Qi, C., Pollica, D., Hagan, M., Cole, T. et al., "Transient CO Preferential Oxidation (PrOx) for PEM Fuel Cell," SAE Technical Paper 2000-01-0378, 2000, https://doi.org/10.4271/2000-01-0378.
Pages:
7
Abstract:
To avoid degradation, the Proton Exchange Membrane (PEM) fuel cell requires less than 10 to 50 ppmv carbon monoxide (CO) in the reformate stream. A transient Preferential Oxidation (PrOx) system was developed for reformer operating powers between 5 kW and 60 kW thermal. Testing results show that steady state reformate CO concentration from the PrOx is less than 6 ppmv for a variety of inlet CO concentrations. Furthermore, the PrOx is capable of maintaining CO under 10 ppmv during reformer transient conditions such as power turn up and turn down.
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