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Potassium-based dry sorbents for removal of sulfur dioxide at low temperatures
채호진,김재창,이수출,이수재,조민선,정석용,류춘용,권용목,황병욱,이중범 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.36 No.-
The SO2 sorption properties of dry potassium-based sorbents, prepared by impregnation of varioussupports with potassium carbonate, were investigated at the various water vapor concentrations at alevel of 5000 ppm of SO2. It was found that alkali metal-based sorbents promoted with potassiumcarbonate could be used as a sorbent for SO2 sorption at low temperatures (between 30 8C and 60 8C). Inparticular, the potassium-based sorbents showed an excellent SO2 sorption capacity of about 310 mgSO2/g sorbent in the presence of water vapor, while in the absence of water vapor, their SO2 sorptioncapacities decreased.