Carbon Shale Combustion in the Fluidized Bed Reactor

The purpose of this article is to present the possibilities of coal shale combustion in furnaces with bubbling fluidized bed. Coal shale can be autothermally combusted in the fluidized bed, despite the low calorie value and high ash content of fuel. Established concentrations of CO (500 ppm) and VOC (30 mg/m³) have indicated a high conversion degree of combustible material during combustion process. Average concentrations of SO₂ and NO_x in the flue gas were higher than this received from the combustion of high quality hard coal, 600 ppm and 500 ppm, respectively. Optional reduction of SO₂ and NO_x emission may require the installation of flue gas desulphurization and de-NO_x systems.