A novel selective flue gas SO2 removal with an amine absorbent

Abstract

Wet flue gas desulfurization (WFGD) is the most widespread one among all SO₂ removal methods. A novel desulfurization method is presented throughout this paper in which an amine based absorber is used to reduce SO₂ concentration, from 8000ppm to less than 200 ppm. In this study, the selectivity of the new desulfurization method with consideration of operational parameters such as: SO2 concentration, column pressure, temperature of absorption process and final released SO₂ emission are investigated in a steady-state condition. According to the experiments, sulfur dioxide which was in range of 4000 ppm to 8000 ppm in gas mixture. and was reduced to less than 200 ppm and 1000 ppm respectively was reduced from 4000-8000ppm to an amount of less than 200 ppm in the outlet of the pilot. During the scrubbing process, SO₂ absorption was performed in atmospheric pressure and a temperature between 52 to 73 degrees Celsius. influences of PH, gas to liquid ratio (G/L) and the stripper temperature at certain condition are investigated.