SYSTEM FOR COLLECTING ACID GAS AND METHOD FOR COLLECTING THE SAME

摘要

The present invention relates to an acid gas capturing system and a capturing method thereof. According to the present invention, disclosed is an acid gas capturing system which comprises: an absorption tower absorbing acid gas in exhaust gas by means of an absorbent; a desorption tower receiving the absorbent which has absorbed the acid gas from the absorption tower and separating the acid gas and the absorbent under a predetermined temperature and pressure; a reboiler receiving the absorbent, which is separated from the acid gas, from the absorption tower and supplying the absorbent after applying steam at a specific temperature onto the supplied absorbent; a first supply line receiving, from the desorption tower, the absorbent separated from the acid gas from a first position to a second position; and a heat supplier supplying heat to the desorption tower by allowing the absorbent supplied through a circulation line to pass through an interior of the desorption tower. According to the present invention, the acid gas capturing system can minimize consumption of renewable energy which is conventionally consumed in a capturing process by recycling the renewable energy in the acid gas capturing process.