OLS : Record


Main Title Pilot Testing of Sodium Thiosulfate.
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-68-02-3648; EPA/600/J-86/275;
Stock Number PB87-167706
Subjects Sodium thiosulfates; Air pollution control; Flue gases; Desulfurization; Concentration(Composition); Pilot plants; Sulfur dioxide;
Library   Call Number Additional Info Location Date Modified
NTIS PB87-167706 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 11p
Abstract The article gives results of pilot plant tests to evaluate sodium thiosulfate as an oxidation inhibition additive in five lime/limestone slurry flue gas desulfurization processes. It was found that the oxidation rate of absorbed SO2 was reduced by more than 50% in the presence of 100-200 ppm of thiosulfate ion in the scrubbing slurry. Calcium sulfate dihydrate (gypsum) scaling was eliminated and the unsaturated (with respect to gypsum) operation mode was maintained by the addition of sodium thiosulfate. Other benefits of sodium thiosulfate addition observed at the pilot plant included improvement in solids dewatering properties for limestone processes and improvement in SO2 removal efficiency for magnesium-enhanced lime/limestone processes.
Supplementary Notes Pub. in Environmental Progress, v5 n4 p225-233 Nov 86. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
NTIS Title Notes Journal article.
PUB Date Free Form c1986
Category Codes 68A
NTIS Prices PC A02/MF A01
Primary Description 600/13
Document Type NT
Control Number 715626800
Cataloging Source NTIS/MT
Origin NTIS
Type CAT