Fine particulate emissions: Flue gas conditioning for improved fine particle capture in fabric filters: (Task 3. 6)
Previous pilot-scale work at the University of North Dakota Energy Mineral Research Center (EMRC) has shown that significant reductions in fine particle emissions from a fabric filter can be achieved by injecting small amounts of ammonia and sulfur trioxide (SO{sub 3}) upstream of the baghouse as conditioning agents. In addition, baghouse pressure drop is reduced because of an increase in dust cake porosity. The general objective of the work was to develop flue gas conditioning as a method of reducing fine particle emissions, and to explore the mechanisms by which the conditioning process reduces emissions and pressure drop. The work this past year has focused on the fundamentals of ash properties which control fine particle penetration through a fabric filter. The work has consisted of: (1) construction and setup of a bench-scale fabric filtration system, (2) tests with reentrained ash at ambient conditions to relate penetration behavior to coal type, ash characteristics, and conditioning, and (3) tests in which ammonia and SO{sub 3} were injected upstream of the bench-scale filter to determine conditioning effects and the effect of conditioning agent concentrations and temperature. 25 refs., 21 figs., 2 tabs.
- Research Organization:
- North Dakota Univ., Grand Forks, ND (USA). Energy and Mineral Research Center
- Sponsoring Organization:
- DOE/FE
- DOE Contract Number:
- FC21-86MC10637
- OSTI ID:
- 6841681
- Report Number(s):
- DOE/MC/10637-2827-Task-3.6; ON: DE90011397
- Country of Publication:
- United States
- Language:
- English
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01 COAL, LIGNITE, AND PEAT
54 ENVIRONMENTAL SCIENCES
AMMONIA
CHEMICAL REACTIONS
FABRIC FILTERS
EFFICIENCY
FLY ASH
ADHESION
SULFUR OXIDES
ASHES
BENCH-SCALE EXPERIMENTS
DESIGN
ELECTRICAL PROPERTIES
EMISSION
FIBERS
FLUE GAS
GLASS
MATHEMATICAL MODELS
PARTICLE SIZE
POROSITY
PRESSURE DROP
PROGRESS REPORT
VELOCITY
AEROSOL WASTES
CHALCOGENIDES
DOCUMENT TYPES
FILTERS
GASEOUS WASTES
HYDRIDES
HYDROGEN COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RESIDUES
SIZE
SULFUR COMPOUNDS
WASTES
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
010800 - Coal
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540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)