Sulphur dioxide removal from gases - by selective absorption, for treatment of flue gases

摘要

is removed from gases by adsorption in a solvent of formula where n = 0-3; R = - (where R1 = 1-3C alkyl) followed by desorption of the dissolved SO2. The solvents are stable up to 140 degrees C have low vapour pres. and are non-corrosive.