THERMODYNAMIC ASSESSMENT OF CARBAMIDE USE FOR REDUCING BOILER NOX, CO FLUE GAS EMISSIONS

Some aspects of boiler toxic pollutant emission reduction ill the presence of carbamide are discussed in the paper. Theoretical pollution reduction investigation Was Conducted by using thermodynamic function calculation methods and evaluating the Gibbs' energy value Changes at Various temperatures. The equations of these changes were derived. It was determined that the most reliable Compounds, funned during the reaction between carbamide and nitrogen oxides, are CO2, nitrogen and water. Other products are formed when carbamide is oxidized. Also, it was found that carbamide could reduce Sulphur oxides to sulphur, and in some cases - to H2S. The pyrolysis of carbamide is possible at temperatures above 450 K.