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Combustion of Coal and Solid Waste using a Horizontal Combustor
The aim of this work to investigate the distribution of mercury in the gas phase, bottom ash and fly ash during the combustion of coal and solid waste such as dried sludge and solid refuse fuel (SRF) because the solid waste can be used as alternative fuel. In our study, we used two types of continuous combustors including vertical and horizontal combustor at the same conditions. In vertical combustor, we can get only the bottom ash while in horizontal combustor we get both fly ash and bottom ash. For both combustors, the gaseous mercury was measured by using the Ontario Hydro Method. The results showed that a significant amount of emission of gas phase mercury occurs during the combustion of coal, dried sludge, and SRF. Among the fuels, SRF showed high mercury oxidation while dried sludge showed a high level of gaseous mercury emission in the flue gas.
