Record Display for the EPA National Library Catalog


Main Title Evaluation of the flash desulfurization process for coal cleaning /
Author Fleming, Donald K. ; Smith, Robert D.
Other Authors
Author Title of a Work
Smith, Robert D.,
CORP Author Institute of Gas Technology, Chicago, IL.;Industrial Environmental Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency, Industrial Environmental Research Laboratory ; National Technical Information Service [distributor,
Year Published 1979
Report Number EPA-600/7-79-016; EPA-68-02-2126; EPA-ROAP-21AFJ-40
Stock Number PB-292 328
OCLC Number 08352999
Subjects Coal--Desulfurization--United States. ; Coal--Desulphurization--United States
Additional Subjects Coal preparation ; Desulfurization ; Sulfur oxides ; Hydrogen sulfide ; Design criteria ; Process charting ; Crushing ; Economics ; Operating costs ; Forecasting ; Tables(Data) ; Air pollution ; Laboratory equipment ; Pilot plants ; Air pollution abatement ; Low sulfur coal ; Flash desulfurization process ; Chemical treatment ; Thermal treatment
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-7-79-016 Headquarters Library/Washington,DC 07/03/2013
EKBD  EPA-600/7-79-016 Research Triangle Park Library/RTP, NC 12/12/2003
ESAD  EPA 600-7-79-016 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-292 328 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xi, 142 p. : ill. ; 28 cm.
The report gives results of a program to develop (on the laboratory, bench, and pilot scale) operating conditions for key steps in the 'flash' process for desulfurizing coal by chemical and thermal treatment. Laboratory and bench scale data on high-sulfur eastern U.S. coals prove that the process can reduce sulfur to the point that the resulting solid fossil fuel can be directly consumed in compliance with current regulations for SOx emissions. Because of operating and technical difficulties, pilot scale test data are inconclusive. A preliminary analysis of a conceptual process indicates that the treated fuel would cost $1.50 to 1.75/million Btu (in 1977 dollars on a utility financing basis) if the initial coal cost is $1.00/million Btu. Four eastern U.S. coals, from abundant seams, were treated under various reducing-gas atmospheres at elevated temperatures. Sufficient sulfur was removed from all coals tested at ambient pressure and at temperatures of 1500 F and residence times of 60 minutes. These data were obtained in laboratory, fixed-bed, continuous weighing reactors and bench-scale fluidized-bed systems. As conceived, the process incorporated a 'sulfur-getter'--a material (e.g., lime) that has a greater chemical affinity for the sulfur than the coal has. Use of a sulfur-getter is required to reduce the H2S concentration in the gas. Data indicate that the concept is sound.
"Institute of Gas Technology." "January 1979." "Contract no. 68-02-2126, ROAP no. 21AFJ-40, program element no. 1AB013."