Compatibility of selected ceramics with steam-methane reformer environments

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Conventional steam reforming of methane to synthesis gas (CO and H{sub 2}) hasa conversion efficiency of about 85%. Replacement of metal tubes in the reformer with ceramic tubes offers the potential for operation at temperatures high enough to increase the efficiency to 98-99%. However, the two candidate ceramic materials being given strongest consideration, sintered alpha Si carbide and Si carbide particulate-strengthened alumina, have been shown to react with components of the reformer environment. Extent of degradation as a function of steam partial pressure and exposure time has been studied, and results suggest limits under which these structural ceramics can be ... continued below

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8 p.

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Keiser, J. R.; Howell, M.; Williams, J. J. & Rosenberg, R. A. April 1996.

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Description

Conventional steam reforming of methane to synthesis gas (CO and H{sub 2}) hasa conversion efficiency of about 85%. Replacement of metal tubes in the reformer with ceramic tubes offers the potential for operation at temperatures high enough to increase the efficiency to 98-99%. However, the two candidate ceramic materials being given strongest consideration, sintered alpha Si carbide and Si carbide particulate-strengthened alumina, have been shown to react with components of the reformer environment. Extent of degradation as a function of steam partial pressure and exposure time has been studied, and results suggest limits under which these structural ceramics can be used in advanced steam-methane reformers.

Physical Description

8 p.

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OSTI as DE96008682

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  • National Association of Corrosion Engineers (NACE) annual corrosion conference and exposition: water and waste water industries, Denver, CO (United States), 24-29 Mar 1996

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  • Other: DE96008682
  • Report No.: CONF-960389--9
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 215783
  • Archival Resource Key: ark:/67531/metadc672643

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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.

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  • April 1996

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  • June 29, 2015, 9:42 p.m.

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  • Nov. 19, 2015, 4:27 p.m.

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Keiser, J. R.; Howell, M.; Williams, J. J. & Rosenberg, R. A. Compatibility of selected ceramics with steam-methane reformer environments, article, April 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc672643/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.