Effect of Coal Type and Residence Time on the Submicron Aerosol Distribution from Pulverized Coal Combustion
Open Access
- 1 January 1984
- journal article
- research article
- Published by Taylor & Francis in Aerosol Science and Technology
- Vol. 3 (1) , 77-96
- https://doi.org/10.1080/02786828408958996
Abstract
Three types of pulverized coal were burned in a laboratory furnace under various combustion configurations. Pulverized samples of Utah bituminous, Beulah (North Dakota) lignite, and Texas lignite coals were burned at a rate of 2.5 kg/hr in a laboratory furnace. Aerosol size distributions were measured at various positions within the convection section, and temperature and gas compositions were measured throughout. The evolution of the submicron particle size distribution within the convection section for the three coals was similar, although the location of the initial particle mode at the convection section inlet varied with coal type. While staged combustion of Utah bituminous coal had a variable effect on the volume of submicron aerosol produced, staged combustion of the lignites caused a definite increase in the submicron aerosol volume. Vapor enhancement due to a localized reducing atmosphere, which would effect coals of higher ash volatility, is thought to explain this behavior.Keywords
This publication has 23 references indexed in Scilit:
- Mineral matter and trace-element vaporization in a laboratory-pulverized coal combustion systemEnvironmental Science & Technology, 1982
- Factors governing the surface enrichment of fly ash in volatile trace speciesJournal of Colloid and Interface Science, 1982
- Coal Combustion Aerosol Formation Mechanisms: A ReviewAerosol Science and Technology, 1982
- A Cyclone for Size-Selective Sampling of Ambient AirJournal of the Air Pollution Control Association, 1980
- Application of surface-deposition models to size-fractionated coal fly ashAtmospheric Environment (1967), 1980
- Particulate formation in power station boiler furnacesProgress in Energy and Combustion Science, 1979
- Elemental particle-size emissions from coal-fired power plants: Use of an inertial cascade impactorAtmospheric Environment (1967), 1978
- Composition and size distribution of in-stack particulate material at a coal-fired power plantAtmospheric Environment (1967), 1976
- Trace elements in fly ash. Dependence of concentration on particle sizeEnvironmental Science & Technology, 1974
- Rejection of OutliersTechnometrics, 1960