PROCESSES AND METHODS FOR LOW ENERGY CARBON DIOXIDE CAPTURE

摘要

The present invention generally relates to processes and methods for the capture of carbon dioxide from gases that are produced by various industrial processes including the capture of CO2 from flue gases after the combustion of carbon-based fuels.

主权项

1. A process for removing CO2 from a CO2-containing gas, the process comprising:
contacting a liquid medium with a CO2-containing gas in an absorption zone in the presence of a biocatalyst that promotes the absorption of CO2 from the gas phase into the liquid medium, thereby producing a rich liquid medium; and introducing the rich liquid medium into a stripping zone operating under reduced pressure and comprising a biocatalyst that promotes the desorption of CO2 from the liquid medium into the gas phase, thereby producing a lean liquid medium; wherein the temperature of the rich liquid medium exiting the absorption zone is within about 20° C. of the temperature of the lean liquid medium exiting the stripping zone.