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Title: The production of a premium solid fuel from Powder River Basin coal

Abstract

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.

Authors:
; ; ;
Publication Date:
Research Org.:
Western Research Inst., Laramie, WY (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10172095
Report Number(s):
DOE/MC/11076-92/C0041; CONF-9205107-1
ON: DE92019176
DOE Contract Number:  
FC21-86MC11076
Resource Type:
Technical Report
Resource Relation:
Conference: COAL PREP `92: 9th international coal preparation exhibition and conference,Cincinnati, OH (United States),3-7 May 1992; Other Information: PBD: [1992]
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; COAL PREPARATION; ECONOMICS; COAL; DRYING; CONTROL; SPONTANEOUS COMBUSTION; COMPARATIVE EVALUATIONS; DUSTS; COAL GASIFICATION; CHARS; COATINGS; COAL LIQUIDS; DEPOSITION; CALORIFIC VALUE; PITCHES; CARBON DIOXIDE; FLUIDIZED BEDS; DECARBOXYLATION; PYROLYSIS; EXPERIMENTAL DATA; 010300; PREPARATION

Citation Formats

Merriam, N, Sethi, V, Thomas, K, and Grimes, R W. The production of a premium solid fuel from Powder River Basin coal. United States: N. p., 1992. Web. doi:10.2172/10172095.
Merriam, N, Sethi, V, Thomas, K, & Grimes, R W. The production of a premium solid fuel from Powder River Basin coal. United States. https://doi.org/10.2172/10172095
Merriam, N, Sethi, V, Thomas, K, and Grimes, R W. 1992. "The production of a premium solid fuel from Powder River Basin coal". United States. https://doi.org/10.2172/10172095. https://www.osti.gov/servlets/purl/10172095.
@article{osti_10172095,
title = {The production of a premium solid fuel from Powder River Basin coal},
author = {Merriam, N and Sethi, V and Thomas, K and Grimes, R W},
abstractNote = {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.},
doi = {10.2172/10172095},
url = {https://www.osti.gov/biblio/10172095}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 01 00:00:00 EDT 1992},
month = {Tue Sep 01 00:00:00 EDT 1992}
}