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The Transformation of Inorganic Elements in Coal Under Oxyfuel Combustion
Pages: 455-459
Year: Issue:  2
Journal: Journal of Engineering Thermophysics

Keyword:  oxyfuel combustionfly ashinorganic elementspartition;
Abstract: Thermodynamic equilibrium calculation method has been used to investigate the transformation rule of inorganic elements in XiaoLongTan fly ash in low-temperature flue gas area.The effect of CO2 concentration and SO2 on the transformation of inorganic elements in fly ash has been analyzed at normal pressure and the temperature ranges from room temperature to 1000℃.The results show that in low-temperature area,the components with Ca,Mg are easy to react with CO2.The concentration of CO2 has a great effect on the carbonation reaction,while sulphation will be greatly promoted with the existence of SO2,thus inhibit the carbonation reaction.
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