Record Display for the EPA National Library Catalog


Main Title Evaluation of trace element release from fluidized-bed combustion systems /
Author Alvin, M. A. ; O'Neill, E. P. ; Yannopoulos, L. N. ; Keairns., D. L. ;
Other Authors
Author Title of a Work
Alvin, M. A.
CORP Author Westinghouse Research and Development Center, Pittsburgh, Pa.;Industrial Environmental Research Lab., Research Triangle Park, N.C.
Publisher Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory ; For sale by the National Technical Information Service,
Year Published 1978
Report Number EPA/600-7-78-050; EPA-68-02-2132
Stock Number 22161
OCLC Number 04268278
ISBN pbk.
Subjects Pollution--Analysis ; Combustion ; Fluidization ; Trace elements
Additional Subjects Air pollution control ; Fluidized bed processing ; Trace elements ; Electric power plants ; Lead(Metal) ; Beryllium ; Mercury(Metal) ; Fluorine ; Thermodynamics ; Gas analysis ; Chemical analysis ; Concentration(Composition) ; Industrial wastes ; Combustion products ; Laboratory equipment ; Sulfur dioxide ; Nitrogen oxides ; Chemical equilibrium ; Chemical reactions ; Monitoring ; Fluidized bed combustion ; Air pollution detection ; Flame emission spectroscopy
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-7-78-050 Headquarters Library/Washington,DC 07/02/2012
EKBD  EPA-600/7-78-050 Research Triangle Park Library/RTP, NC 11/28/2003
ESAD  EPA 600-7-78-050 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-281 321 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xv, 90 pages : illustrations ; 29 cm.
The report gives results of an investigation of four trace elements: lead, beryllium, mercury, and fluorine. The chemical fate of minor and trace elements is important in assessing the environmental impact of the fluidized-bed combustion (FBC) process and, for certain elements, in determining the potential for deposits or corrosion in process equipment. Equilibrium product distributions for these elements, at operating conditions corresponding to atmospheric and pressurized FBC systems, are projected on the basis of thermodynamic calculations. Results show which elements are likely to be volatilized in the high-temperature zone of the combustor and which are likely to condense on cooling the gases. The projections are compared with available experimental plant data. Alternatives for continuously monitoring the release of the four toxic trace elements in the laboratory were also investigated. The thermodynamic analysis shows that essentially all the lead, mercury, fluorine, and beryllium can be volatilized in the FB combustor. Partial beryllium and fluorine condensation in the form of clay and alkali compounds will occur. Lead condensation is affected by the chlorine available. These thermodynamic projections provide a basis for experimental and monitoring studies. Initial plant data generally confirm the projections.
Prepared for U.S. Environmental Protection Agency, Office of Research and Development, under contract no. 68-02-2132, program element no. EHE623A. "March 1978." "EPA/600-7-78-050." Includes bibliographical references.