Abstract
This invention is a carbon dioxide capturing system. The carbon dioxide capturing system comprises of a carbon dioxide absorbing unit, an ammonia gas absorbing unit, a carbon dioxide stripping unit, an ammonia gas stripping unit, and a heating unit. Because of the connection made between the ammonia gas absorbing unit and the ammonia gas absorbing unit, and the connection made between the carbon dioxide stripping unit and the ammonia gas stripping unit, allows a mixture of a first regeneration agent of the carbon dioxide stripping unit and a rich amine recycled water of the ammonia gas absorbing unit to both enter into the carbon dioxide absorbing unit. This design assists the first absorbent to absorb carbon dioxide and allows the heat energy which is generated by the heating unit to be effectively utilized between the carbon dioxide absorbing unit and the ammonia gas absorbing unit, the carbon dioxide stripping unit, and the ammonia gas stripping unit. This invention can reduce energy consumption and can also reduce equipment cost when compared to prior known carbon capturing systems.