Carbon dioxide capture technologies work by capturing carbon dioxide (CO2) emissions from industrial processes or power plants before they are released into the atmosphere. There are different methods employed for capturing CO2, including post-combustion capture, pre-combustion capture, and oxy-fuel combustion. Post-combustion capture involves removing CO2 from the flue gas after the fuel has been burned. Pre-combustion capture separates CO2 from the fuel before it is burned. Oxy-fuel combustion burns the fuel in an oxygen-rich environment, which results in a flue gas that is mostly CO2, making it easier to capture. Other methods include chemical absorption, adsorption, and membrane separation.
