Record Display for the EPA National Library Catalog

RECORD NUMBER: 510 OF 826

OLS Field Name OLS Field Data
Main Title Petrographic Characteristics and Physical Properties of Marls, Chalks, Shells, and Their Calcines Related to Desulfurization of Flue Gases.
Author Harve, Richard D. ; Fros, Robert R. ; Thomas, J, Josephus ;
CORP Author Illinois State Geological Survey, Urbana.
Year Published 1973
Report Number EPA-68-02-0212; EPA-ROAP-21ACY017; 650/2-73-044;
Stock Number PB-226 321
Additional Subjects Petrography ; Marls ; Calcium carbonates ; Desulfurization ; Calcines ; Limestone ; Mineralogy ; Scrubbers ; Combustion ; Flue gases ; Sulfur dioxide ; Tables(Data) ; Fuels ; Porosity ; Sludge ; Costs ; Illinois ; Bibliographies ; Air pollution control
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-226 321 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 122p
Abstract
The report gives results of sampling and studies of 37 operating and other pits in fresh-water marl in northeastern U.S., and 24 deposits of chalk in chalky limestone, four deposits of shell and coquina, two deposits of caliche, and a large carbonate sludge refuse pile, all in the eastern U.S. The studies related to their potential use in limestone processes for SO2 emission control from fossil fuel combustion. Each sample and its calcined product were investigated for petrography, mineralogy, chemistry, pore structure, and surface area. It was indicated that marls and their calcones should have high reactivities with SO2; because of their ease of production and disaggregation, marls should be given important consideration for use in limestone scrubbing of flue gases at power plants near marl deposits. Chalks and some chalky limestones should also have higher reactivities with SO2 gases than would dense limestone. Carbonate shell materials should not be crushed and used in SO2 scrubbing; however, their calcines are probably as reactive as those of other carbonates. Carbonate waste sludge resembles marl in many properties and is potentially very reactive with SO2, especially in wet scrubbing processes.