Carbon dioxide gas recovery device

• Main Authors: KISHIMOTO AKIRA, MURAHASHI KAZUKI, EKUNI YUTAKA, KANSHA YASUKI, HAYASHI MIKIHIRO, MIMURA TOMOHIRO, TSUTSUMI ATSUSHI
• Format: Patent
• Language: Chinese; English
• Published: 09.01.2013
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The disclosed carbon dioxide gas recovery device is provided with: an absorption tower that absorbs carbon dioxide gas into an absorption solution, thereby generating a rich absorption solution; and a regeneration tower that heats the rich absorption solution, thereby separating out the aforementioned carbon dioxide gas and regenerating a lean absorption solution. The regeneration tower is provided with: a reboiler system that heats an absorption solution drawn from the regeneration tower and then reintroduces said absorption solution into the regeneration tower; and a gas-mixture cooling system that cools a gas mixture drawn from the regeneration tower, condenses a solute and a vapor fraction of a solvent, reintroduces same into the regeneration tower, and outputs carbon dioxide gas. The disclosed carbon dioxide gas recovery device is also provided with a heat pump that uses a heat carrier to move the heat generated in the exothermic reaction that occurs when the absorption solution absorbs carbon dioxide ga