| 摘要 |
A process for capturing a target gas from a flowing gas mixture by use of at least a pair of capture and release sections together with a discharge section is described. The at least one pair of capture and release sections includes a target gas capture section and a target gas release section in fluid communication with one another. The target gas discharge section is in fluid communication with the target gas capture section. The capture, release and discharge sections have a high surface area medium and a fluid contained therein, and include a fluid entry point at a first end and a collection tank at a second end. The process comprises the steps of: directing a gas mixture through the target gas release section followed by the target gas capture section, wherein the fluid contained within the pair of capture and release sections allows for the target gas to be contained within a defined area between the capture and release sections; directing fluid through a first recirculation path from the collection tank of the target gas capture section to the entry point of the target gas release section and directing fluid from the collection tank of the target gas release section to the entry point of the target gas capture section, thereby recycling the fluid. The pair of capture and release sections include a concentration gradient of at least one of the target gas and the fluid. Further steps are : directing the fluid through a flow path, from the collection tank of the target gas capture section, heating the fluid and passing it through the discharge section to thereby release the target gas from the fluid within the discharge section due to the reduced solubility; and directing the fluid depleted of the target gas through a second recirculation path from the collection tank of the discharge section, and then to the entry point of the capture section. An apparatus is also disclosed. |
