Device for separating co2 from fossil-fueled power plant...

Details Device for separating co2 from fossil-fueled power plant... Device for separating co2 from fossil-fueled power plant...

B - Operations, Transporting

01

D

B01D 53/04 (2006.01) C10L 3/10 (2006.01)

Patent

CA 2431303

A gas separation device (10) includes an inner conduit (14), and a concentric outer conduit (18). An electrically conductive filter media (60), preferably a carbon fiber composite molecular sieve, is provided in the annular space between the inner conduit and the outer conduit. Gas flows through the inner conduit and the annular space between the inner conduit and the outer conduit, so as to contact the filter media. The filter media preferentially adsorbs at least one constituent of the gas stream. The filter media is regenerated by causing an electric current to flow through the filter media. The inner conduit and outer conduit are preferably electrically conductive whereby the regeneration of the filter media can be electrically stimulated. The invention is particularly useful for the removal of CO2 from the exhaust gases of fossil- fueled power plants.

L'invention concerne un dispositif de séparation de gaz comprenant un conduit intérieur et un conduit extérieur concentrique. Un filtre conducteur, de préférence du type tamis moléculaire en fibre de carbone composite, est établi dans l'espace annulaire entre les deux condtuis. Le gaz s'écoule à travers le conduit intérieur et l'espace annulaire, venant au contact du filtre. De préférence, celui-ci adsorbe au moins un constituant du flux gazeux. Le filtre est régénéré par le passage d'un courant électrique. De préférence, les deux conduits sont conducteurs, ce qui permet de stimuler électriquement la régénération du filtre. Ce dispositif est particulièrement utile pour l'élimination de CO¿2? dans les gaz d'échappement de centrales à combustible fossile.

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