Particle emitted from coal-fired power

Using a source-composition library containing data from 21 studies of coal-fired power plants, we have investigated the effects of particle size, coal type, and pollution control device on the composition of particles emitted from coal-fired power plants. 

It is now well documented that large numbers of particles are emitted from coal-fired power plants in distinct distributions with modal diameters less than 1 pm (1-5). 

A combined listing of all the compounds identified in the vapor and on particles emitted during the combustion of coal at the /toes power plant are listed in Table I. Similar compounds have been identified in the emissions from a second coal-fired power plant located at Iowa State University. Therefore, this list may be partially representative of coal combustion in semi-modern boilers. Certainly, many more organic compounds than the listed 78 are present in these effluents, but so far these have not been positively identified. Indeed, a 1980 review of organic compounds from coal combustion (1) taken from all the literature reports had only 106 compounds identified. 

Ondov JM, Choquette CE, Zoller WH, et al. 1989. Atmospheric behavior of trace elements on particles emitted from a coal-fired power plant. Atmos Environ 23(10) 2193-1104. 

Source Apportionment Assume that for a rural site the measured PM 0 concentration is 32jig m-3 containing 2.58 pgm-3 Si and 3.84pgm 3Fe. The two major sources contributing to the location s particulate concentration are a coal-fired power plant and soil-related dust. Analysis of the emissions of these sources indicates that the soil contains 200 mg(Si) g (20% of the total emissions) and 32 mg(Fe) g 1 (3.2% of the total emissions), while the particles emitted by the power plant contain IOmg(Si)g (1%) and 150mg(Fe)g (15%). Neglecting Si and Ft contributions from other sources... 

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