Post-Combustion Capture

Post combustion capture is the removal of carbon dioxide from a power station flue gas after fuel has been burned, and before the gas is compressed, transported and stored underground in a suitable geological formation. It adapts absorption techniques already used for acid gas removal in the chemical and petrochemical industries, most often using a chemical amine to absorb the carbon dioxide out of the flue gas, with plants typically aiming to capture more than ninety five percent of it before it is transported as a gas or dense phase fluid for underground storage. It is the most mature of the various carbon capture methods, with roots in techniques developed before the Second World War, and is used at power stations and at industrial plants such as cement and lime works, alongside newer methods such as calcium looping, which uses calcium oxide to absorb carbon dioxide in industrial settings. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/