Abstract: A method for removing SOx from a gas by using a compound alcohol-amine solution is provided. The compound alcohol-amine solution is made by mixing ethylene glycol and/or polyethylene glycol with hydroxyl and/or carboxyl organic compound having basic group containing nitrogen. The compound alcohol-amine solution is contacted with the gas containing SOx to absorb the SOx in the gas, wherein x=2 and/or 3. The compound alcohol-amine solution with absorbed SOx is regenerated by one or more of heating method, vacuum method, gas stripping method, ultrasonic method, microwave method, and radiation method to release by-products of sulfur dioxide and sulfur trioxide, and the regenerated compound alcohol-amine solution is recycled for use. This method can be used for removing SOx from flue gas, burning gas, coke-oven gas, synthesis waste gas from dyestuff plants, sewage gas from chemical fiber plants, and other industrial raw material gases or waste gases containing SOx.

Abstract: A method for removing SOx from a gas by using a modified polyethylene glycol solution to absorb the SOx in the gas. The modified polyethylene glycol solution is contacted with the gas containing SOx to absorb the SOx in the gas, wherein x=2 and/or 3, the modified polyethylene glycol is a product derived from etherifying hydroxyl groups in the molecules of ethylene glycol and/or polyethylene glycol and has a general formula: R1—(O—C2H4)n—O—R2, where n is a positive integer, R1 and R2 are the same or different and are each independently alkyl, alkenyl, alkynyl, acyl or aryl.

Abstract: A method for removing SOx from a gas by using a compound alcohol-amine solution is provided. The compound alcohol-amine solution is made by mixing ethylene glycol and/or polyethylene glycol with hydroxyl and/or carboxyl organic compound having basic group containing nitrogen. The compound alcohol-amine solution is contacted with the gas containing SOx to absorb the SOx in the gas, wherein x=2 and/or 3. The compound alcohol-amine solution with absorbed SOx is regenerated by one or more of heating method, vacuum method, gas stripping method, ultrasonic method, microwave method, and radiation method to release by-products of sulfur dioxide and sulfur trioxide, and the regenerated compound alcohol-amine solution is recycled for use. This method can be used for removing SOx from flue gas, burning gas, coke-oven gas, synthesis waste gas from dyestuff plants, sewage gas from chemical fiber plants, and other industrial raw material gases or waste gases containing SOx.

Abstract: A method for removing SOx from a gas by using a modified polyethylene glycol solution to absorb the SOx in the gas. The modified polyethylene glycol solution is contacted with the gas containing SOx to absorb the SOx in the gas, wherein x=2 and/or 3, the modified polyethylene glycol is a product derived from etherifying hydroxyl groups in the molecules of ethylene glycol and/or polyethylene glycol and has a general formula: R1—(O—C2H4)n—O—R2, where n is a positive integer, R1 and R2 are the same or different and are each independently alkyl, alkenyl, alkynyl, acyl or aryl.