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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25 pages

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

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 27 times. More information about this article can be viewed below.

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  • Western Research Institute
    Publisher Info: Western Research Inst., Laramie, WY (United States)
    Place of Publication: Laramie, Wyoming

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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.

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25 pages

Notes

OSTI; NTIS; GPO Dep.

Source

  • 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

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  • January 1, 1992

Added to The UNT Digital Library

  • Feb. 10, 2019, 8:45 p.m.

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  • Jan. 13, 2020, 6:16 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; Laramie, Wyoming. (https://digital.library.unt.edu/ark:/67531/metadc1449374/: accessed March 29, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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