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OLS Field Name OLS Field Data
Main Title Petrographic and Mineralogical Characteristics of Carbonate Rocks Related to Sulfur Dioxide Sorption in Flue Gases.
Author Harve, Richard D. ;
CORP Author Illinois State Geological Survey, Urbana.
Year Published 1971
Report Number CPA-22-69-65; 0920;
Stock Number PB-206 487
Additional Subjects ( Carbonate rocks ; Adsorbents) ; ( Air pollution ; Sulfur dioxide) ; ( Sulfur dioxide ; Adsorption) ; Petrography ; Chemical analysis ; Roasting ; Calcite ; Limestone ; Dolomite(Rock) ; Aragonite ; Surface properties ; Porosity ; Roasting ; Fly ash ; Flue gases ; Calcium oxides ; Electron microscopy ; Air pollution control
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-206 487 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 100p
Abstract
The limestone injection process is an effective, inexpensive way to control SO2 in flue gases. Thus detailed petrographic, mineralogical, and chemical analyses of 26 carbonate rocks were made and compared with the capacity (3 1/2 hr. reaction period) and differential reactivity (120 sec. reaction period) of calcined specimens for sorption of sulfur dioxide (SO2). The study also included petrographic and chemical examination of limestone-modified fly ashes and boiler deposits. Image analysis and scanning electron microscope methods were employed to examine limestones, dolomites, and a variety of other types of carbonates and their calcines. A wide range of petrographic and SO2 sorptive properties were revealed. The relatively high SO2 reactivity observed for chalks, calcareous marls, and oolitic aragonite sand samples is believed due mainly to the high pore volume and fine grain size of these carbonate rocks.