Main Title |
Evaluation of simultaneous SO2/NOX control technology / |
Author |
Bruce, Kevin R.,
|
Other Authors |
|
Publisher |
U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory, United States, Environmental Protection Agency, Center for Environmental Research Information |
Year Published |
1993 |
Report Number |
EPA/600-SR-93-188 |
OCLC Number |
904018360 |
Subjects |
Flue gases--Desulfurization ;
Sorbents
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 600-SR-93-188 |
In Binder |
Headquarters Library/Washington,DC |
10/25/2018 |
EKBD |
EPA-600/SR-93-188 |
|
Research Triangle Park Library/RTP, NC |
09/29/2015 |
ELBD ARCHIVE |
EPA 600-SR-93-188 |
In Binder Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
|
Collation |
2 pages ; 28 cm |
Notes |
At head of title: Project Summary "EPA/600-SR-93-188." "December 1993." |
Contents Notes |
The Clean Air Act Amendments of 1990 (CAAA) have led to accelerated research into novel sulfur dioxide (SO2) and nitrogen oxide (NOx) control technologies for coal-fired industrial boilers. One of these technologies combines sorbent injection and selective non-catalytic reduction for simultaneous SO2/NOx removal. The work presented herein concentrated on characterizing three process operational parameters of this technology: injection temperature, sorbent type, and reductant/pollutant stoichiometric ratio. A slurry composed of a urea-based solution (NOx OUT A or NOx OUT A+) and various calcium-(Ca- ) based sorbents was injected at a range of temperatures and reactant/pollutant stoichiometries in a natural-gas-fired, pilot-scale reactor with doped pollutants. Up to 80% reduction of SO2 and NOx at reactant/pollutant stoichiometric ratios of 2 and 1.5, respectively, was achieved. SO2 emission reductions from slurry injection were enhanced moderately when compared with dry sorbent injection methods, possibly caused by sorbent fracturing to smaller, more reactive particles. Emissions from ammonia (NH3) slip (unreacted nitrogen-based reducing agent) and nitrous oxide (N2O) formation were reduced in comparison with other published results, while similar NOx reductions were obtained. increased carbon monoxide (CO) emissions, caused by the decomposition of urea, were moderate. Emissions of CO, NH3, and N2O for the enhanced urea solution (NOx OUT A+) were substantially less than the levels observed during urea (NOx OUT A) injection. The injection of the urea-based solution enhanced SO2 removal, probably because of the formation of (NH4)2CA(SO4)2 H2O. The results of this pilot-scale study have shown high reduction of both SO2 and NOx. |
Place Published |
Research Triangle Park, NC Cincinnati, OH |
Corporate Au Added Ent |
Air and Energy Engineering Research Laboratory. |
Alternate Title |
Evaluation of simultaneous SO2/NOX control technology / |
PUB Date Free Form |
1993 |
BIB Level |
m |
Medium |
unmediated |
Content |
text |
Carrier |
volume |
Cataloging Source |
RDA |
OCLC Time Stamp |
20150917103114 |
Language |
eng |
Origin |
OCLC |
Type |
CAT |
OCLC Rec Leader |
03239nam 2200361Ki 45020 |