CLEAN COAL ENERGY TECHNOLOGIES AND PERSPECTIVE OF FLAMELESS COAL COMBUSTION

The paper summarizes clean coal technologies, both present and future. The authors describe existing technologies of processing the chemical energy of coal into useful forms of energy. The authors present the advantages of coal as a fuel. Due to the large amount of resources and the uniformity of incidence in the World and the relatively stable price, coal is probably the most promising fuel. Trends in clean coal technologies have been described. One possibility is the application of HTAC Technology in pulverized coal boilers. The proposed HTAC boiler features the following major advantages: small size, low harmful substances emission (mainly NO(x)), high and uniform heat fluxes and simple construction of the burners. Overall, the present study confirmed that HTAC technology can be a practicable, efficient and clean technology for fossil fuel fired boilers. However, it has to be pointed out that the investigated boiler is only still a concept and before any industrial application, more research has to be done.