Particulate emission characteristics of oil-fired urtility boilers

Technical Report · Sat Aug 01 04:00:00 EDT 1981

OSTI ID:6241760

Piper, B F; Hersh, S; Mormile, D J

The size distribution and composition of particulate emissions from three oil fired utility boilers were determined under representative nominal operating conditions. In addition, the variability of particulate size and compositional characteristics with changes in furnace excess air level and fuel atomization quality was obtained from one boiler as an indication of the fluctuations in particulate emissions which could be anticipated as a result of variable operating practices. The three test boilers included a 360 MW tangentially fired boiler, a 345 MW face fired boiler and a 150,000 lb/hr steam sendout package boiler - all burning a low sulfur (0.24%) fuel oil. The particulate emissions from the 360 MW tangentially fired boiler exhibited a submicron single mode size distribution with a number mean on the order of 0.05 microns. Reduction in excess air levels to the smoking threshold did not modify this distribution. However, reduction in the atomization quality of the fuel sprays resulted in a bi-modal distribution consisting of large (greater than 10 microns) porous particles in addition to the submicron population. Data from both the 345 MW face fired boiler and a 150,000 lb/hr steam sendout package boiler showed a bi-modal distribution under normal operating conditions. Particulate composition analyses demonstrated increases in carbon for both the reduced excess air and reduced atomization quality tests. Sulfate emissions were also found to increase for the atomization tests. Scanning Auger microprobe analysis combined with an argon ion milling technique indicated that this sulfate was found as a surface layer on the large carbonaceous particulates emitted under this operating condition.

• Research Organization: KVB, Inc., Elmsford, NY (USA); Consolidated Edison Co. of New York, Inc., New York (USA)
• OSTI ID: 6241760
• Report Number(s): EPRI-CS-1995; ON: DE81904193
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
025000* -- Petroleum-- Combustion
20 FOSSIL-FUELED POWER PLANTS
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABSORPTION SPECTROSCOPY
AEROSOL WASTES
AIR FLOW
AIR POLLUTION CONTROL
ASHES
ATOMIZATION
BOILERS
BURNERS
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
COMBUSTION PRODUCTS
COMBUSTION PROPERTIES
CONTROL
DATA
ELECTRON MICROSCOPY
ELECTRON SPECTROSCOPY
EXPERIMENTAL DATA
FLUE GAS
FLUID FLOW
FLY ASH
FOSSIL-FUEL POWER PLANTS
FUEL OILS
FUELS
GAS FLOW
GASEOUS WASTES
INFORMATION
LIQUID FUELS
MICROSCOPY
NONDESTRUCTIVE ANALYSIS
NUMERICAL DATA
OIL BURNERS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PARTICLE SIZE
PARTICLES
PARTICULATES
PETROLEUM PRODUCTS
POLLUTION CONTROL
POWER PLANTS
QUANTITY RATIO
RESIDUES
SCANNING ELECTRON MICROSCOPY
SIZE
SPECTROSCOPY
STACKS
SULFATES
SULFUR COMPOUNDS
THERMAL POWER PLANTS
WASTES
X-RAY EMISSION ANALYSIS