Carbon dioxide absorbing liquid and method and apparatus for capturing carbon dioxide from fuel gas
By using a carbon dioxide absorbent containing amino acids, organic amines, and activators, combined with a porous membrane and a specific device, the problems of small carbon dioxide adsorption capacity and high regeneration energy consumption in existing technologies have been solved, achieving efficient capture and purification of carbon dioxide, which is suitable for the treatment of highly acidic fuel gases.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SINOPEC NANJING RES INST OF CHEM IND CO LTD
- Filing Date
- 2021-10-22
- Publication Date
- 2026-07-24
AI Technical Summary
Existing chemical absorption methods have small carbon dioxide adsorption capacity, high energy consumption for absorbent regeneration, poor capture effect on highly acidic feed gases, and difficulty in separating high-purity carbon dioxide.
A carbon dioxide absorbent containing amino acids, organic amines, activators, and promoters is used for indirect contact mass transfer through a porous membrane and regenerated using a specific device, including a membrane absorber, a heat exchanger, and a regeneration tower, to achieve carbon dioxide capture and purification.
It improves the adsorption capacity of carbon dioxide absorbent, reduces regeneration energy consumption, obtains high-purity carbon dioxide, and purifies fuel gas with carbon dioxide content below 3% (v%), making it suitable for industrial application.
Smart Images
Figure CN115999321B_ABST