Experimental and Numerical Simulation Research on Oxy-fuel Co-Combustion of Coal and Biomass in Fluidized Beds

This thesis explores a novel clean combustion technology, the oxy-fuel co-firing of coal and biomass in fluidized beds, which is expected to achieve negative CO2 emissions. This work conducts oxy-fuel co-firing of coal/biomass on a 10 kWth fluidized bed and reveals the characteristics of co-combustion, CO2 enrichment, and pollutant emission laws, which enrich the knowledge system of fluidized bed oxy-fuel combustion. In addition, the numerical simulation method of a multifuel particle reaction system has been developed, which enriches the research methods and lays the foundation for the development of simulations of multiphase reaction systems with over three fuels.