Environmental assessment of NH/sub 3/ injection for an industrial package boiler. Volume 1. Technical results. Final report, January 1983-January 1984
The report discusses emission results from comprehensive flue gas sampling of a gas- and oil-fired industrial boiler equipped with Exxon's Thermal DeNO/sub x/ Ammonia Injection Process for NO/sub x/ reduction. Comprehensive emission measurements included continuous monitoring of flue gas emissions; source assessment sampling system (SASS) tests; EPA Method 5/17 for solid and condensible particulate emissions and ammonia emissions; controlled condensation system for SO/sub 2/ and SO/sub 3/; and N/sub 2/O emission sampling. Ammonia injection at a NH/sub 3//NO molar ratio of 2.52 gave a NO/sub x/ reduction of 41% from an uncontrolled level of 234 ppm to a controlled level of 137 ppm. NH/sub 3/ emissions increased from 11 ppm for the baseline to an average of 430 ppm for ammonia injection. Nitrous oxide, N/sub 2/O was reduced 68% from a 50 ppm baseline level to a 17 ppm controlled level. Total particulate emissions increased by an order of magnitude from a baseline of 17.7 ng/J to a controlled level of 182 ng/J. The increase is in part attributed to formation of ammonia sulfate and bisulfate from residual ammonia and SO/sub x/. Total organic emissions were at a moderate level and showed a relative concentration in the nonvolatile category. Organic emissions of CO and trace inorganic elements were not significantly affected by ammonia injection.
- Research Organization:
- Acurex Corp., Mountain View, CA (USA). Energy and Environmental Div.
- OSTI ID:
- 5879981
- Report Number(s):
- PB-86-159852/XAB; ACUREX/TR-83-139/EE
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
AMMONIA
BOILERS
AIR POLLUTION ABATEMENT
FLUE GAS
AIR POLLUTION MONITORING
NITROGEN OXIDES
CONTROL
CHEMICAL ANALYSIS
COMBUSTION PRODUCTS
INDUSTRIAL WASTES
PARTICULATES
SAMPLING
SULFUR DIOXIDE
SULFUR TRIOXIDE
CHALCOGENIDES
GASEOUS WASTES
HYDRIDES
HYDROGEN COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OXIDES
OXYGEN COMPOUNDS
PARTICLES
POLLUTION ABATEMENT
SULFUR COMPOUNDS
SULFUR OXIDES
WASTES
421000* - Engineering- Combustion Systems
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)