CO2 RECOVERY SYSTEM

摘要

The present invention has: a cooling tower (14) that uses cooling water (13) to cool a CO2-containing exhaust gas (12) discharged from industrial equipment such as a boiler (11) or a gas turbine; a CO2 absorption tower (16) that brings the cooled CO2-containing exhaust gas (12) into contact with a CO2-absorption solution (15) that absorbs CO2, thereby removing the CO2 from said exhaust gas (12); and a first absorption-solution regeneration tower (18-1) and second absorption-solution regeneration tower (18-2) that release CO2 from the CO2-absorption solution that has absorbed CO2 (rich solution) (17), thereby regenerating the absorption solution (15). A second lean solution at the outlet of the second absorption-solution regeneration tower is subjected to vacuum flash vaporization, and the resulting vapor is inputted to the first absorption-solution regeneration tower.