Effects of CO2 Concentration on the Combustion and Pollutant Emission Characteristics of Coal and Char
Effects of CO2 concentration on combustion and pollutant emission characteristics of Xuzhou bituminous coal and its char were studied respectively on a thermo-gravimetric analyzer and a fix bed reactor. Results show that for the same O2 concentration and with the rise of CO2 concentration, ignition temperatures of both the bituminous coal and its char increase slightly, while their burnout temperatures rise obviously and the burnout time of char delays noticeably! with the rise of CO2 concentration, SO2 emission reduces with two sulfur releasing peaks produced along with time, NO emission decreases and CO emission grows. When actual temperature is lower than the burnout temperature of coal, CO emission rises greatly due to char-CO2 gasification.
NETL
NSTL
万方数据
维普
