The production of a premium solid fuel from Powder River Basin coal. [COMPCOAL Process]

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This report describes our initial evaluation of a process designed to produce premium-quality solid fuel from Powder River Basin (PRB) coal. The process is based upon our experience gained by producing highly-reactive, high-heating-value char as part of a mild-gasification project. In the process, char containing 20 to 25 wt % volatiles and having a gross heating value of 12,500 to 13,000 Btu/lb is produced. The char is then contacted by coal-derived liquid. The result is a deposit of 6 to 8 wt % pitch on the char particles. The lower boiling component of the coal-derived liquid which is not deposited ... continued below

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Pages: (25 p)

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Merriam, N.; Sethi, V.; Thomas, K. & Grimes, R. W. January 1, 1992.

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Description

This report describes our initial evaluation of a process designed to produce premium-quality solid fuel from Powder River Basin (PRB) coal. The process is based upon our experience gained by producing highly-reactive, high-heating-value char as part of a mild-gasification project. In the process, char containing 20 to 25 wt % volatiles and having a gross heating value of 12,500 to 13,000 Btu/lb is produced. The char is then contacted by coal-derived liquid. The result is a deposit of 6 to 8 wt % pitch on the char particles. The lower boiling component of the coal-derived liquid which is not deposited on the char is burned as fuel. Our economic evaluation shows the process will be economically attractive if the product can be sold for about $20/ton or more. Our preliminary tests show that we can deposit pitch on to the char, and the product is less dusty, less susceptible to readsorption of moisture, and has reduced susceptibility to self heating.

Physical Description

Pages: (25 p)

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OSTI; NTIS; GPO Dep.

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  • COAL PREP '92: 9th international coal preparation exhibition and conference, Cincinnati, OH (United States), 3-7 May 1992

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  • Other: DE92019176
  • Report No.: DOE/MC/11076-92/C0041
  • Report No.: CONF-9205107--1
  • Grant Number: FC21-86MC11076
  • Office of Scientific & Technical Information Report Number: 7181659
  • Archival Resource Key: ark:/67531/metadc1449374

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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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  • January 1, 1992

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  • Feb. 10, 2019, 8:45 p.m.

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  • March 15, 2019, 6:11 p.m.

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Merriam, N.; Sethi, V.; Thomas, K. & Grimes, R. W. The production of a premium solid fuel from Powder River Basin coal. [COMPCOAL Process], article, January 1, 1992; United States. (https://digital.library.unt.edu/ark:/67531/metadc1449374/: accessed March 22, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.