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The chemical mechanism of pollution formation in coal combustion process

Zajemska M., Radomiak H.

Archivum Combustionis

2013

Vol. 33 nr 3

135--144

The paper undertakes the problems of combustion of coal in oxygen-modified atmospheres in the aspect of formation and reduction of gaseous pollutants. Using the CHEMKIN-PRO, a professional software application supplied by American company Reaction Design, the chemistry of hard coal combustion in a pilot 0.1 MW CFB boiler was modelled. The computation was performed for gaseous atmosphere chemical compositions, namely 21% O2 and 79% CO2. The chemical mechanism covered 152 chemical reactions and 46 chemical compounds and elements. The initial conditions were formulated based on data obtained from experimental tests carried out within the framework of the Strategic Project "Advances energy recovery technologies". The performed computer simulations have proved that the use of numerical methods for predicting the combustion products constitutes an inseparable and irreplaceable element of research.