| Main Title |
Equimolar NO-NO2 absorption into magnesia slurry : a pilot feasibility study / |
| Author |
Down, W.
|
| Other Authors |
|
| 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 |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 650-2-73-015 |
|
Headquarters Library/Washington,DC |
11/04/2015 |
| ELBD ARCHIVE |
EPA 650-2-73-015 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| NTIS |
PB-223 579 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
1 volume (various pagings) : illustrations, tables ; 28 cm |
| Abstract |
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) |
| Notes |
"Project sponsored by Environmental Protection Agency." "Order 4193-01." "Research Center Report 4653." "EPA/650-2-73-015." "November 29, 1971." |
