Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Evaluation of Gypsum Crystallization for Limestone Flue Gas Desulfurization.
Author Chang, J. C. S. ; Brna, T. G. ;
CORP Author Acurex Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Year Published 1986
Report Number EPA-68-02-3988; EPA/600/D-86/010;
Stock Number PB86-148129
Additional Subjects Air pollution control equipment ; Gypsum ; Crystallizers ; Dewatering ; Industrial wastes ; Combustion products ; Fines ; Comparison ; Performance evaluation ; Separation ; Flue gases ; Flue gas desulfurization systems ; Limestone scrubbing
Library Call Number Additional Info Location Last
NTIS  PB86-148129 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 21p
The paper gives results of pilot plant tests using a double draw-off crystallizer as the hold tank to improve the gypsum dewatering properties of a forced oxidation limestone flue gas desulfurization process. A hydroclone was used as the size classification device for solids separation and fines removal. Compared with a mixed tank crystallizer, the double draw-off crystallizer resulted in a 45% reduction in free moisture within the filter and a 58% increase in filtration rate.