Record Display for the EPA National Library Catalog

RECORD NUMBER: 21 OF 1548

OLS Field Name OLS Field Data
Main Title Activation and Reactivity of Novel Calcium-Based Sorbents for Dry SO2 Control in Boilers.
Author Jozewicz, W. ; Kirchgessner, D. A. ;
CORP Author Acurex Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Year Published 1988
Report Number EPA-68-02-4701; EPA/600/D-88/179;
Stock Number PB88-250212
Additional Subjects Air pollution control equipment ; Sulfur dioxide ; Boilers ; Air pollution abatement ; Sorbents ; Exhaust gases ; Combustion ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB88-250212 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 12/29/1988
Collation 19p
Abstract
Chemically modified Ca(OH)2 sorbents for SO2 control in utility boilers were tested in an electrically heated, bench-scale isothermal flow reactor, operated at between 700 and 1000 C and residence times of from 0.6 to 2 sec calculated from bulk gas flowrates. Novel surfactant-modified Ca(OH)2--SM-Ca(OH)2--sorbents were compared to conventional Ca(OH)2 produced by dry hydration, DH-Ca(OH)2. Sorbents were activated in the flow reactor. Changes in the pore structure of Ca(OH)2 sorbents reacting with SO2 also were investigated. The effect of thermal sintering on pore structure of sorbents reacting with SO2 was eliminated. The degree of conversion was controlled by varying gas-phase mass transfer resistance (SO2 concentrations from 50 to 3000 ppm).