Evaluation of Ceramic Refractories for Slagging Gasifiers : Summary of Progress to Date

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Description

Commercial refractories were tested for up to 500 h in both basic and acidic slags. The slag compositions typify those expected in slagging coal gasifiers. The slag temperatures ranged up to 1600 degrees C. Compositions tested have included silicon carbides, chrome-alumina-magnesia spinels, and alumina and magnesia-based refractories with various amounts of chromia and silica. In some tests, the cold faces were water cooled. With water cooling, the silicon carbides showed virtually no attack after 500 h. In the absence of water cooling, the chrome-alumina-magnesia spinels were the most resistant to slag attack but were subject to thermal-shock cracking. Alumina-chrome refractories … continued below

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56 p. : charts, tables

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Kennedy, C. R.; Swaroop, R.; Jones, D. J.; Fousek, R. J.; Poeppel, R. B. & Stahl, D. September 1978.

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  • Main Title: Evaluation of Ceramic Refractories for Slagging Gasifiers : Summary of Progress to Date
  • Added Title: ANL (Series)
  • Added Title: Argonne National Laboratory Report ANL-78-61
  • Series Title: Argonne National Laboratory Reports

Description

Commercial refractories were tested for up to 500 h in both basic and acidic slags. The slag compositions typify those expected in slagging coal gasifiers. The slag temperatures ranged up to 1600 degrees C. Compositions tested have included silicon carbides, chrome-alumina-magnesia spinels, and alumina and magnesia-based refractories with various amounts of chromia and silica. In some tests, the cold faces were water cooled. With water cooling, the silicon carbides showed virtually no attack after 500 h. In the absence of water cooling, the chrome-alumina-magnesia spinels were the most resistant to slag attack but were subject to thermal-shock cracking. Alumina-chrome refractories performed well in acid slags when water cooled, are probably more stable than silicon carbide in coal-gasification atmospheres, and, in the form of ramming mixes, showed excellent thermal-shock resistances. Plans for future testing are described.

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56 p. : charts, tables

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  • OCLC: 883136020
  • SuDoc Number: E 1.28:ANL-78-61
  • Report No.: ANL-78-61
  • Grant Number: W-31-109-Eng-38
  • Archival Resource Key: ark:/67531/metadc283641

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  • September 1978

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  • Aug. 4, 2015, 8:33 a.m.

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Kennedy, C. R.; Swaroop, R.; Jones, D. J.; Fousek, R. J.; Poeppel, R. B. & Stahl, D. Evaluation of Ceramic Refractories for Slagging Gasifiers : Summary of Progress to Date, report, September 1978; Argonne, Illinois. (https://digital.library.unt.edu/ark:/67531/metadc283641/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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