A Partial Oxidation Technique for Fuel-Cell Anode Exhaust-Gas Synthesis

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This paper describes the performance of a gas generator used to synthesize the exhaust gas from the anode of a molten-carbonate fuel cell. The composition of this gas is estimated to be that of equilibrium at 1,250 &deg; F and 1 atm: 48% CO<sub>2</sub> , 39% H<sub>2</sub>O, 5% CO, and 8% H<sub>2</sub>, with an energy content of approximately 39 Btu/scf (higher heating value). To synthesize a range of gas compositions around this point, the gas generator partially oxidizes a mixture of CH<sub>4</sub> , O<sub>2</sub> , and CO<sub>2</sub> to generate energy densities between 20 and 60 Btu/scf at temperatures between 1,198 ... continued below

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Edward H. Robey, Jr. & Gemmen, Randall S. November 10, 1998.

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Description

This paper describes the performance of a gas generator used to synthesize the exhaust gas from the anode of a molten-carbonate fuel cell. The composition of this gas is estimated to be that of equilibrium at 1,250 &deg; F and 1 atm: 48% CO<sub>2</sub> , 39% H<sub>2</sub>O, 5% CO, and 8% H<sub>2</sub>, with an energy content of approximately 39 Btu/scf (higher heating value). To synthesize a range of gas compositions around this point, the gas generator partially oxidizes a mixture of CH<sub>4</sub> , O<sub>2</sub> , and CO<sub>2</sub> to generate energy densities between 20 and 60 Btu/scf at temperatures between 1,198 and 1,350 &deg; F. Results show that the technique provides a relatively high ratio of CO to H2 concentrations compared with the target composition (CO:H<sub>2</sub> of 2, versus 0.71). A detailed chemical model shows that the likely cause is quenching of the CO and H<sub>2</sub> chemistry below 2,000 &deg; F.

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  • Other: M98002060
  • Report No.: DOE/FETC-98/1071
  • Grant Number: NONE
  • DOI: 10.2172/1658 | External Link
  • Office of Scientific & Technical Information Report Number: 1658
  • Archival Resource Key: ark:/67531/metadc621470

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • November 10, 1998

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  • June 16, 2015, 7:43 a.m.

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  • April 8, 2016, 1:20 p.m.

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Edward H. Robey, Jr. & Gemmen, Randall S. A Partial Oxidation Technique for Fuel-Cell Anode Exhaust-Gas Synthesis, report, November 10, 1998; Morgantown, West Virginia. (digital.library.unt.edu/ark:/67531/metadc621470/: accessed April 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.