Combustion of pellets from agricultural waste

Abstract

Agricultural waste is a renewable source of energy when it is burned in the form of pallets. When pellets and briquettes are burned, pollutants are released into the environment and waste is generated in the form of ash. Equipping power plants with modern treatment facilities allows reducing atmospheric pollution and reducing the environmental load on the environment. In this work, the processes of formation of pollutants in the process of burning pallets are theoretically considered and the formation of ash and slag waste, which cannot be used as a fertilizer, but needs to be processed or removed in another way, is investigated. Pre-treatment by grinding the slag formed after combustion is an additional technological operation that can be avoided if the correct combustion technology is observed, raw material control, quality control and storage of the components of briquettes and pellets. Studying the composition of the starting raw materials for pellet production is one of the important stages of minimizing slag formation. It should be taken into account that a detailed analysis of the ash composition is an expensive and labor-intensive process that requires expensive equipment. In this case, an important characteristic is the content of silicates in the ash, because it is it that determines the appearance of insoluble slag, which subsequently needs to be dissolved or ground.