Abstract
Coal combustion by products from ash pond of 3rdthermal power plant of Ulaanbaatar city have been collected in 2010 and 2013 years. The ash samples have been characterized by XRD, XRF and SEM-EDX methods in order to evaluate their chemical and mineralogical composition changes with disposed times. The mineralogical composition of ash varies with time though the chemical composition of the ashes were close each other. Possibly, inefficient operating condition of the TPS shows influence on the mineralogical composition.DOI: http://dx.doi.org/10.5564/mjc.v14i0.201Mongolian Journal of Chemistry 14 (40), 2013, p61-65
Highlights
10-30% of the original coal is noncombustible and remains as solid by-products after burning in the thermal power plants
The chemical, mineralogical composition and volume of the coal combustion by-products are determined by the content and composition of the inorganic constituent of the original coal and design and operation of the power station [1]
The aim of the present research is to characterize coal combustion by products by the analytical techniques and to elucidate differences of the ashes collected in different years
Summary
10-30% of the original coal is noncombustible and remains as solid by-products after burning in the thermal power plants. The chemical, mineralogical composition and volume of the coal combustion by-products are determined by the content and composition of the inorganic constituent of the original coal and design and operation of the power station [1]. The two largest thermal power stations in Ulaanbaatar city are using a huge volume ash pond to keep the removed coal combustion by-products wet.
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