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Main Title Pilot evaluation of enhanced E-SOx process /
Author Chang, John C. S. ; Hovis, L. S.
Other Authors
Author Title of a Work
Hovis, Louis S.
CORP Author Acurex Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Air and Energy Engineering Research Laboratory,
Year Published 1990
Report Number AEERL-P-692; EPA-68-02-4701; EPA/600/D-90/096
Stock Number PB90-262916
Additional Subjects Canadian Chemical Engineering Conference, July 15-21:--(40th--1990 :--Nova Scotia, Canada) ; Air pollution ; Electrostatic precipitators ; Desulfurization ; Combustion ; Coal ; Flue gases ; Sulfur dioxide ; Calcium oxides ; Pilot plants ; Mass transfer ; E-SOx process ; Air pollution control ; Stationary sources
Library Call Number Additional Info Location Last
NTIS  PB90-262916 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 24 pages ; 28 cm
The paper discusses pilot-plant tests with a 28 cu m/min (1000 cfm) electrostatic precipitator (ESP) to evaluate techniques that have a potential for enhancing the SO2 removal of the E-SOx process for retrofit application. The techniques investigated included mass-transfer additives, improved gas/liquid contact, product recycle, and recycle activation through a combination of hydrating, heating, and mixing. Marginal effects were obtained with the mass-transfer additives tested. Improving the gas-flow pattern and gas/liquid contact had a positive influence on SO2 removal and demonstrated the importance of flow control and spraying system design. Significant SO2 removal enhancement was obtained with recycle operation. When the recycle material was further activated, SO2 removal of 60-65% was achieved at a lime stoichiometry of 1.2.
Caption title. "EPA/600/D-90/096." "Louis S. Hovis, project officer." Microfiche.