Absorbent liquid regeneration device, CO2 recovery device equipped with this, and absorption liquid regeneration method

摘要

The absorption liquid regenerating device separates the regenerating tower for regenerating the CO 2 absorbing liquid and the gas released from the regenerating tower into the CO 2 gas and the condensed water, and returns the condensed water to the regenerating tower. a reflux water drum configured, the gas phase portion of the reflux water drum, or, wherein the flowing out of the gas phase CO 2 is provided in the CO 2 stream path of gas flow, CO 2 absorption contained in the CO 2 gas A cleaning unit configured to remove the agent with a cleaning liquid is provided, and the cleaning liquid has a lower concentration of the CO 2 absorber than the condensed water stored in the liquid phase portion of the reflux water drum. It is characterized by that.