Record Display for the EPA National Library Catalog


Main Title Alternatives to calcium-based SO2 sorbents for fluidized-bed combustion : conceptual evaluation /
Author Newby, Richard A. ; Keairns., Dale L.
Other Authors
Author Title of a Work
Keairns, D. L.,
CORP Author Westinghouse Research and Development Center, Pittsburgh, Pa.;Industrial Environmental Research Lab., Research Triangle Park, N.C.
Publisher Industrial Environmental Research Laboratory, Office of Energy, Minerals, and Industry ; For sale by the National Technical Information Service,
Year Published 1978
Report Number EPA 600-7-78-005; EPA-68-02-2132
Stock Number PB-278 332
OCLC Number 04966487
Subjects Fluidized-bed furnaces ; Fluidization ; Sorbents
Additional Subjects Air pollution control ; Fluidized bed processing ; Sulfur dioxide ; Absorbers(Materials) ; Substitutes ; Calcium ; Combustion products ; Industrial wastes ; Sorbents ; Thermodynamics ; Cost analysis ; Performance evaluation ; Limestone ; Dolomite(Mineral) ; Metal oxides
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 600-7-78-005 Headquarters Library/Washington,DC 07/22/2013
EKBD  EPA-600/7-78-005 Research Triangle Park Library/RTP, NC 11/21/2003
ELBD ARCHIVE EPA 600-7-78-005 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ESAD  EPA 600-7-78-005 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-278 332 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xv, 126 pages : illustrations ; 28 cm.
The report gives results of a conceptual engineering evaluation to screen supported metal oxides as alternatives to natural calcium-based sorbents (limestones and dolomites) for SO2 control in atmospheric and pressurized fluidized-bed combustion (FBC) processes. Alternative sorbents were evaluated, using three acceptance criteria: SO2 removal capability in the combustor, predicted by thermodynamics; SO2 concentrations achievable in the regenerator off-gas, according to thermodynamics; and SO2 concentrations off the regenerator, achievable based on material and energy balances. The evaluation identified 14 potentially acceptable sorbents for atmospheric FBC, and 11 for pressurized FBC. Cost estimates were prepared to project the maximum acceptable loss rates for the alternative sorbents due to attrition and/or deactivation. Loss rates must be less than 0.1% of bed inventory per hour in order to compete economically with natural calcium-based sorbents, even if maximum thermodynamic performance were obtained. U.S. resources of some minerals may be of extreme importance for many of the alternative metal oxide sorbents considered.
Prepared by Westinghouse Research and Development Center, Pittsburgh, Pa., for U.S. Environmental Protection Agency, Office of Research and Development, under contract no. 68-02-2132, program element no. EHE623A. "EPA Project Officer: D. Bruce Henschel." Issued Jan. 1978. Includes bibliographical references (pages 83-83a). Microfiche (negative).