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Advanced Coal Combustion Technologies and their Environmental Impact

By injecting sorbent in the furnace, PFBC removes more than 90 percent of SO_2 in flue gases without additional emission control device. In addition, due to lower combustion temperature, NO_X emissions are around 90 percent lower than those from pulverised coal (PC) plant. IGCC plant performance is even more environmentally exceptable and its high efficiency is a result of a combined cycle usage. Technical, economic and environmental characteristics of mentioned combustion technologies will be presented in this paper. Comparison of PFBC, IGCC and PC power plants economics and air impact will also be given.

coal; environmental regulations; pressurised fluidised bed combustion; integrated gasification combined cycle

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