SO2 and NOx emission during combustion of coal in TPP 'Oslomej' (Macedonia)

Having in mind importance of complex investigation of boiler CB 380, content of noxious gases in the flue gas have been measured. Measurements have comprised: composition and temperature of flue gas as well as pressure in the duct. Measurement of content of: oxygen (O2) % v/v, carbon monoxide (CO) ppm, nitrogen monoxide (NO) ppm, sulfur dioxide (SO2) ppm. Based on the measured oxygen content and memorized value Of CO2mx for used lignite content of carbon dioxide (CO2) in % v/v have been calculated. Excess of air (1) have been also calculated based on measured oxygen O2. All results of measurements have been recalculated on normal / standardized conditions. Based on measurements and evaluations can be concluded that during all regimes emission of NOx have been under the limits. The same can be concluded for CO for all regimes above 100 MW load. Content of CO for regimes at and under 80 MW are round 50 % above the limit. Emission Of SO2 are 3 to 5 time above the limit value in relation to adopted TA Luft norms