Record Display for the EPA National Library Catalog


Main Title Fly ash conditioning with sulfur trioxide /
Author Dismukes, Edward B. ; Gooch., John P.
Other Authors
Author Title of a Work
Gooch, John P.
CORP Author Southern Research Inst., Birmingham, Ala.;Industrial Environmental Research Lab., Research Triangle Park, N.C.
Publisher Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory ; For sale by the National Technical Information Service,
Year Published 1977
Report Number EPA/600/2-77/242; EPA-68-02-2114; EPA-ROAP-21ADL-027
Stock Number PB-276 651
Subjects Fly ash ; Sulfur trioxide ; Sulphur trioxide
Additional Subjects Fly ash ; Sulfur trioxide ; Air pollution control equipment ; Electrostatic precipitators ; Performance evaluation ; Industrial wastes ; Combustion products ; Efficiency ; Boilers ; Injection ; Particle size distribution ; Mathematical models ; Sioux City(Iowa) ; Iowa Public Service Company
Library Call Number Additional Info Location Last
NTIS  PB-276 651 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vi, 65 pages : illustrations ; 28 cm.
The report describes an evaluation of an SO3 injection system for the George Neal Unit 2 boiler of the Iowa Public Service Co. in Sioux City, Iowa. Results of base line tests without conditioning indicate a dust resistivity of 6 x 10 to the 12th power ohm-cm at 118C: the precipitator's average collection efficiency was 91.3% at a specific collecting area of 42.8 sq m/(cu m/sec). Because transformer-rectifier sets tripped out, apparently due to ash buildup in the hoppers, only one precipitator efficiency test was conducted with the SO3 system operating continuously with all T-R sets operating. Results of this test were: (1) specific collecting area = 41.8 sq m/(cu m/sec); (2) collection efficiencies = 99.27% (ASME method), 98.96% (EPA method), and 98.78% (EPA method, including first impinger residue); and (3) 4 x 10 to the 10th power ohm-cm dust resistivity at 143C. An adequate accounting was made for the fate of the injected SO3.
Prepared for Environmental Protection Agency, Office of Research and Development. Contract no. 68-02-2114, task no. 1, ROAP no. 21ADL-027, program element no. 1AB012. December 1977. Includes bibliographical references. Microfiche. Microfiche.