Record Display for the EPA National Library Catalog


Main Title Effects of Sorbent Injection for Sulfur Dioxide Removal on Particulate Control Systems for Coal-Fired Boilers.
Author Gooch, J. P. ; DuBard, J. L. ; Faulkner, M. G. ; Marchant, G. H. ; Dahlin, R. S. ;
CORP Author Southern Research Inst., Birmingham, AL. Environmental Sciences Dept.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher Nov 88
Year Published 1988
Report Number SRI-ENV-88-620-5676; EPA/600/7-88/023;
Stock Number PB89-127484
Additional Subjects Air pollution control equipment ; Boilers ; Sulfur dioxide ; Particles ; Combustion products ; Flue dust ; Fly ash ; Electrostatic precipitators ; Coal fired power plants
Library Call Number Additional Info Location Last
NTIS  PB89-127484 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 131p
The report describes studies undertaken to quantify the effects of dry SO2 sorbent injection on electrostatic precipitator (ESP) operation with a coal-burning utility boiler. The specific operation of interest was EPA's limestone injection, multistage burners (LIMB) process. The combination of spent sorbent and fly ash has a higher resistivity, a higher mass concentration, and a finer particle-size distribution than the ash alone; all of these factors diminish the effectiveness of ESP. Also investigated was chemical conditioning to reduce the resistivity problem, the only one of three concerns stemming from sorbent injection that can be readily mitigated. Other topics studied were: the recycle, disposal, and utilization of waste-ash/sorbent mixtures; the selection and modification of sorbents to improve SO2 capture in the furnace; and the reactivation of spent sorbent by humidification to achieve supplemental post-furnace capture of SO2.