Flue gas analysis for biomass and coal co-firing in fluidized bed: process simulation and validation

Abstract Coal-conversion technologies, although used ubiquitously, are often discredited due to high pollutant emissions, thereby emphasizing a dire need optimize the combustion process. The co-firing of coal/biomass in fluidized bed reactor has been an efficient way pollutants emission. Herein, new model designed Aspen Plus® simultaneously include detailed reaction kinetics, volatile compositions, tar combustion, and hydrodynamics reactor. Validation process was done with variations fuel including high-sulfur Spanish lignite, high-ash Ekibastuz coal, wood pellets, locally collected municipal solid waste (MSW) temperature ranging from 1073 1223 K. composition exhaust gases, namely, CO/CO 2 /NO/SO were determined be within 2% experimental observations. Co-combustion local MSW coal had flue gas 1000 5000 ppm CO, 16.2%–17.2% CO , 200–550 NO, 130–210 SO . A sensitivity analysis on biomass demonstrated optimal operating for at 1148 K recommended biomass-to-coal ratio is 1/4, leading minimum emissions