Record Display for the EPA National Library Catalog


Main Title Hot gas cleanup process /
Author Onursal, A. Bekir.
Other Authors
Author Title of a Work
Research reporting series. 7, Interagency enery-environment research and development
CORP Author Industrial Environmental Research Laboratory (Research Triangle Park, N.C.); Dynalectron Corporation. Applied Research Division.
Publisher U.S. Environmental Protection Agency, Industrial Environmental Research Laboratory ; National Technical Information Service [distributor],
Year Published 1979
Report Number EPA 600/7-79/169; EPA-68-02-2601
Stock Number PB80-108467
OCLC Number 07839402
Subjects Flue gases--Desulfurization ; Coal gasification
Additional Subjects Flue gases--Desulphurization ; Coal gasification ; Air pollution control ; Absorbers(Materials) ; Industrial wastes ; Combustion products ; Tars ; Particles ; Nitrogen oxides ; Corrosion ; Electric power plants ; Design criteria ; Performance evaluation ; Equipment
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-7-79-169 Headquarters Library/Washington,DC 06/17/2013
EJED  EPA 600/7-79-169 OCSPP Chemical Library/Washington,DC 01/01/1988
EKBD  EPA-600/7-79-169 Research Triangle Park Library/RTP, NC 01/02/2004
ESAD  EPA 600-7-79-169 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB80-108467 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation ix, 143 pages : illustrations ; 27 cm.
The report gives results of a study to identify and classify 22 hot gas cleanup (HGC) processes for desulfurizing reducing gases at above 430 C according to absorbent type into groups employing solid, molten salt, and molten metal absorbents. It describes each process in terms of its status, chemistry, operating characteristics, problems, and uncertainties. It assesses the applicability of none HGC processes to a variety of coal gasification systems for several end uses for the product gases. It evaluates advantages and disadvantages of HGC relative to conventional low temperature cleanup systems with respect to thermal efficiency, the presence and/or emissions of tars, particulates, and NOx, and corrosion. It also presents economic comparisons between HGC and low temperature desulfurization. HGC processes are best suited for combined-cycle and on-site combustion applications coupled with low- or intermediate-Btu gasifiers. The Kennecott and MERC processes are applicable for desulfurizing gases at high temperatures. HGC processes provide greater overall efficiencies than low temperature desulfurization. Processing gases at high temperatures result in increased NOx emissions. Particulate removal at high temperatures is inefficient and corrosion problems increase. HGC processes complicate and add uncertainties which economically offset some thermal efficiency.
"Dynalectron Corporation/Applied Research Division." "July 1979." Includes bibliographical references. "Contract no. 68-02-2601, program element no. EHE623A."