Emissions and efficiency performance of industrial coal stoker fired boilers. Final report Aug 77-Nov 79

Technical Report · Wed Jul 01 04:00:00 EDT 1981

OSTI ID:5425793

Langsjoen, P L; Burlingame, J O; Gabrielson, J E

The report gives results of field measurements of 18 coal stoker-fired boilers including spreader stokers, mass-fired overfeed stokers, and mass-fired underfeed stokers. The test variables included stoker design, heat release rate, excess air, coal analysis and sizing, overfire air, and flyash reinjection. Measurements included O/sub 2/, CO/sub 2/, CO, NO, NO/sub 2/, SO/sub 2/, SO/sub 3/, gaseous hydrocarbons, uncontrolled and controlled particulate mass loading, particle size distribution of the flyash, combustible content of ash, sulfur retention in the ash, and boiler efficiency. Particulate loading is shown to be largely dependent on stoker type and degree of flyash reinjection. It increases with heat release rate, but can be controlled with proper use of overfire air in many cases. Nitric oxide increases with excess air and grate heat release rate. These relationships are defined in the report. Overfire air, as it exists in current boiler designs, does not affect NOx. The report also addresses other relationships between operating variables and measured emissions and efficiency. A separate data supplement is available.

• Research Organization: KVB, Inc., Minneapolis, MN (USA)
• OSTI ID: 5425793
• Report Number(s): PB-82-115312
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010900* -- Coal
Lignite
& Peat-- Environmental Aspects
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AEROSOL WASTES
AIR POLLUTION
AIR POLLUTION CONTROL
ASHES
BOILERS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
COMBUSTION PRODUCTS
CONTROL
DESIGN
ELEMENTS
EVALUATION
FLY ASH
FUEL FEEDING SYSTEMS
FUEL SYSTEMS
HYDROCARBONS
INDUSTRIAL WASTES
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PARTICLES
PERFORMANCE
POLLUTION
POLLUTION CONTROL
RESIDUES
STOKERS
SULFUR COMPOUNDS
SULFUR OXIDES
WASTES