Transient control of carbon monoxide with staged PrOx reactors

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Description

Fuel Processor systems generate hydrogen for fuel cell systems from hydrocarbon fuels such as gasoline for automotive fuel cell systems and natural gas for stationary fuel cell systems. These fuel processor systems must remove any contaminants to levels that won't poison the fuel cell before the outlet hydrogen-rich gas stream can be used by the fuel cell to generate electricity. Carbon monoxide is a contaminant that must be removed to levels of < 100 ppm or < 10 ppm depending on the CO tolerance of the fuel cell. Typically, the last unit operation in a fuel processor is a preferential ... continued below

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31 p.

Creation Information

Inbody, M. A. (Michael A.); Borup, R. L. (Rodney L.) & Tafoya, J. (Jose I.) January 1, 2002.

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Description

Fuel Processor systems generate hydrogen for fuel cell systems from hydrocarbon fuels such as gasoline for automotive fuel cell systems and natural gas for stationary fuel cell systems. These fuel processor systems must remove any contaminants to levels that won't poison the fuel cell before the outlet hydrogen-rich gas stream can be used by the fuel cell to generate electricity. Carbon monoxide is a contaminant that must be removed to levels of < 100 ppm or < 10 ppm depending on the CO tolerance of the fuel cell. Typically, the last unit operation in a fuel processor is a preferential oxidation reactor or a selective oxidation reactor, which removes CO by oxidizing it to form C02. These are catalytic reactors where the catalyst and operating conditions are selected so that the oxidation rate of the carbon monoxide is higher than the oxidation rate of hydrogen, even though the hydrogen is present at much higher concentrations (> 30%) than carbon monoxide which is present at trace concentrations (< 1%).

Physical Description

31 p.

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  • Submitted to: 224th National Meetig of the American Chemical Society, Boston, MA, August 18-22, 2002

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  • Report No.: LA-UR-02-5157
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 976294
  • Archival Resource Key: ark:/67531/metadc933045

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  • January 1, 2002

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 5:10 p.m.

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Inbody, M. A. (Michael A.); Borup, R. L. (Rodney L.) & Tafoya, J. (Jose I.). Transient control of carbon monoxide with staged PrOx reactors, article, January 1, 2002; United States. (digital.library.unt.edu/ark:/67531/metadc933045/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.