Pulverized Coal Combustion Characteristics in Oxy-fuel Atmospheres

Abstract Many studies have investigated the coal combustion characteristics in the oxy-fuel condition. This chapter focuses on the relationship between pulverized coal properties (e.g., proximate analysis, ultimate analysis, and mineral elements) and a characteristic temperature. Combustion temperature characteristics of 28 kinds of Chinese coal are studied under various O 2 concentrations through non-isothermal thermogravimetric analysis. The effect of H 2 O on pulverized coal combustion behavior in O 2 /CO 2 atmospheres was studied. The evolution of the structure of coal char under the oxy-fuel combustion containing a high amount of H 2 O was investigated.