OLS : Record

RECORD NUMBER: 18 OF 41

Main Title Control of SOx Emissions by In-Furnace Sorbent Injection: Carbonates vs Hydrates.
Author Newton, G. H.; Harrison, D. J.; Silcox, G. D.; Pershing, D. W.;
CORP Author Utah Univ., Salt Lake City. Dept. of Chemical Engineering.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Year Published 1985
Report Number EPA-R-811001; EPA/600/D-85/255;
Stock Number PB86-120219
Subjects Sulfur oxides; Air pollution control; Sorbents; Carbonates; Hydrates; High temperature tests; Mathematical models; Calcium oxides; Furnace; Injection; Performance evaluation; Industrial wastes; Combustion products;
Holdings
Library   Call Number Additional Info Location Date Modified
NTIS PB86-120219 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 35p
Abstract The paper provides high-temperature isothermal data on SO2 capture by calcium-based sorbents, obtained in a dispersed-phase reactor for limestones, dolomites, hydrated calcitic limes, and hydrated dolomitic limes as a function of Ca/S molar ratio, temperature, and SO2 partial pressure. The experimental results indicate that SO2 capture is approximately linearly dependent on Ca/S molar ratio and relatively insensitive to SO2 partial pressure above 2000 ppm. SO2 capture is a strong function of general sorbent class; dolomitic sorbents are better than calcitic materials on an equivalent calcium basis, and hydrated materials are more reactive than carbonates. Computer model predictions based on a grain formulation, available fundamental rate data, and measured surface areas accurately predict limestone performance; however, predicted capture for the hydrated sorbents is significantly below that measured experimentally. The measured capture results do, however, generally correlate with the BET surface areas measured when the sorbents were calcined in a muffle furnace at 980 K for 20 minutes with an inert environment.
Supplementary Notes Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
PUB Date Free Form Oct 85
Category Codes 13B; 68A
NTIS Prices PC A03/MF A01
Primary Description 600/13
Document Type NT
Control Number 601718160
Cataloging Source NTIS/MT
Origin NTIS
Type CAT