Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Equimolar NO-NO2 absorption into magnesia slurry : a pilot feasibility study /
Author Down, W.
Other Authors
Author Title of a Work
Downs, W.
CORP Author Babcock and Wilcox Co., Alliance, Ohio. Research Center.
Publisher Babcock & Wilcox Co., Research and Development Division, Alliance Research Center,
Year Published 1971
Report Number EPA/650-2-73-015; PB-223 579; BW-4653; EPA-68-02-0022
Stock Number PB223579
OCLC Number 52570266
Subjects Scrubber (Chemical technology) ; Nitrogen oxides.
Additional Subjects ( Nitrogen oxides ; Absorption) ; ( Magnesium oxides ; Absorbers(Equipment)) ; ( Air pollution control equipment ; Nitrogen oxides) ; Scrubbers ; Pilot plants ; Nitrogen oxide(NO) ; Nitrogen oxide(N2O) ; Flue gases ; Feasibility ; Flow rate ; Sulfur dioxide ; Magnesium oxide scrubbing ; Wet methods
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 650-2-73-015 Headquarters Library/Washington,DC 01/23/2012
EJBD  EPA 650-2-73-015 Headquarters Library/Washington,DC 11/04/2015
NTIS  PB-223 579 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 1 volume (various pagings) : illustrations, tables ; 28 cm
The purpose was to investigate the feasibility of absorption of equimolar concentrations of NOx into MgO slurry on a 1500 cfm wet scrubbing pilot plant. A wet scrubbing pilot plant consisting of several scrubbers was modified by the inclusion of an additional scrubber to enable series scrubbing of fly ash, sulfur dioxide, and finally nitrogen oxides. Gaseous nitrogen dioxide was injected into the flue gas following the SO2 scrubber but before the NOx scrubber. Seventeen tests were performed to evaluate parameters including the liquid-to-gas ratio, the ratio of NO2 to NO, slurry concentration, stoichiometry, and gas flow rate. NOx absorption was very poor for all conditions tested. The results are obscured by large variance in the NOx measuring techniques. SO2 absorption in the NOx scrubber was dependent upon the liquid-to-gas ratio and varied from 86% to 98.3%. Deposition on the underside of the first tray of the SO2 scrubber was observed. NOx absorption with equimolar concentrations of NO and NO2 into MgO slurry is not feasible in the apparatus tested. It is probably unfeasible in any practical gas-slurry contacting apparatus. NOx absorption into soluble alkalis may be feasible and would best be done in packed towers. (Modified author abstract)
"Project sponsored by Environmental Protection Agency." "Order 4193-01." "Research Center Report 4653." "EPA/650-2-73-015." "November 29, 1971."