Record Display for the EPA National Library Catalog

RECORD NUMBER: 18 OF 133

OLS Field Name OLS Field Data
Main Title Characterization of Advanced Sorbents for Dry SO2 Control (Journal Article).
Author Jozewicz, W. ; Chang, J. C. S. ; Sedman, C. B. ; Brna, T. G. ;
CORP Author Acurex Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher c1988
Year Published 1988
Report Number EPA-68-02-3988; EPA/600/J-88/559;
Stock Number PB91-177030
Additional Subjects Sulfur dioxide ; Adsorbents ; Air pollution control ; Fly ash ; Calcium oxides ; Chemical reactivity ; Additives ; Silicon dioxide ; Flue gases ; Phosphates ; Stationary sources ; Coal combustion ; Filters ; Surface properties ; Technology assessment ; Reprints ; Dry sulfur dioxide control
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB91-177030 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 09/04/1991
Collation 22p
Abstract
The paper discusses the development of new flyash/lime sorbents for removing SO2 from coal-fired flue gas. Flyash/lime weight ratios of 1:1 to 10:1 and several additives to these sorbents for promoting their reactivity were evaluated in a bench-scale reactor simulating conditions in a fabric filter. Of the additives tested, Na2HPO4.7H2O, (NH4)2HPO4, and H3PO4 significantly enhanced the reactivity of the dry sorbents with SO2. Alternative sources of silica were reacted with lime, and the resultant dry sorbents were shown to be highly reactive with SO2. Of the siliceous materials tested, several diatomaceous earths, montmorillonitic clays, and kaolins were identified as containing reactive silica. The morphology of the sorbents developed was characterized. The information, along with the reactor test results, was used to rate the sorbents for pilot plant evaluation.