Coal-conversion technologies, although used ubiquitously, are often discredited due to high pollutant emissions, thereby emphasizing a dire need to optimize the combustion process. The co-firing of coal/biomass in a fluidized bed reactor has been an efficient way to optimize the pollutants emission. Herein, a new model has been designed in Aspen Plus® to simultaneously include detailed reaction kinetics, volatile compositions, tar combustion, and hydrodynamics of the reactor. Validation of the process model was done with variations in the fuel including high-sulfur Spanish lignite, high-ash Ekibastuz coal, wood pellets, and locally collected municipal solid waste (MSW) and the temperature ranging from 1073 to 1223 K. The composition of the exhaust gases, namely, CO/CO₂/NO/SO₂ were determined from the model to be within 2% of the experimental observations. Co-combustion of local MSW with Ekibastuz coal had flue gas composition ranging from 1000 to 5000 ppm of CO, 16.2%–17.2% of CO₂, 200–550 ppm of NO, and 130–210 ppm of SO₂. A sensitivity analysis on co-firing of local biomass and Ekibastuz coal demonstrated the optimal operating temperature for fluidized bed reactor at 1148 K with the recommended biomass-to-coal ratio is 1/4, leading to minimum emissions of CO, NO, and SO₂.

煤炭转化技术虽然被广泛使用，但由于污染物排放量高而经常受到质疑，因此强调了优化燃烧过程的迫切需要。在流化床反应器中混烧煤/生物质一直是优化污染物排放的有效方法。在此，在 Aspen Plus® 中设计了一个新模型，同时包括详细的反应动力学、挥发性成分、焦油燃烧和反应器的流体动力学。过程模型的验证是通过燃料的变化完成的，包括高硫西班牙褐煤、高灰分 Ekibastuz 煤、木屑颗粒和当地收集的城市固体废物 (MSW)，温度范围为 1073 至 1223 K。废气，即CO/CO ₂ /NO/SO ₂由模型确定在实验观察值的 2% 以内。当地 MSW 与 Ekibastuz 煤的共燃烟气成分范围为 1000 至 5000 ppm 的 CO、16.2% 至 17.2% 的 CO ₂、200 至 550 ppm 的 NO 和 130 至 210 ppm 的 SO ₂。对当地生物质和 Ekibastuz 煤混烧的敏感性分析表明，流化床反应器的最佳操作温度为 1148 K，推荐的生物质与煤的比例为 1/4，从而使 CO、NO 和 SO 的排放量最小₂ .