Method and apparatus for rapid adsorption-desorption CO₂capture

摘要

A method of capturing and sequestering a gas species from a fossil fuel-fired power plant flue gas is disclosed. The method includes the step of providing an apparatus having a vessel adapted to be pressurized and a hollow fiber membrane contained in the vessel and having a sorbent embedded therein. The method further includes the steps of subjecting the hollow fiber membrane to a flow of flue gas, removing one or more gas species from the flue gas with the hollow fiber membrane, and regenerating the sorbent contained in the hollow fiber membrane.

主权项

1. A method of capturing and sequestering a gas species from a fossil fuel-fired power plant flue gas, comprising the steps of:
(a) providing an apparatus having:
(i) a vessel adapted to be pressurized; and(ii) a hollow fiber membrane contained in the vessel and having a sorbent embedded therein; (b) flowing a flue gas through a lumen-side of the vessel; (c) pressurizing the lumen-side to promote flow of the gas through the hollow fiber membrane; (d) subjecting the hollow fiber membrane to the flow of flue gas; (e) removing one or more gas species from the flue gas with the hollow fiber membrane; (f) collecting non-adsorbing gas species of the flue gas in a shell-side of the vessel; (g) de-pressurizing the lumen-side of the vessel to promote backflow of the non-adsorbing gas species from the shell-side and into the hollow fiber membrane to regenerate the sorbent; and (h) regenerating the sorbent contained in the hollow fiber membrane.