Patent ID: 9630143
Date: 2017-04-25
CPC Classifications: B01D,B01J,F01N,Y02A,Y02C,Y02P

Claim:
1. A system for the adsorption of carbon dioxide from air, the system comprising a carbon dioxide capture structure exposed to a moving flow of ambient air; the carbon dioxide capture structure comprising a porous silica substrate having an alumina coating on the surfaces of said substrate and on the surface of the alumina coating is supported an amine sorbent, which is capable of binding carbon dioxide from the moving flow of ambient air; the porous silica substrate being a monolith having a plurality of channels passing between opposing surfaces of the monolith to allow the passage of air entering one end of the channel to exit at an opposite end of a channel, the alumina coating the internal surfaces of the channels; a regeneration enclosure, capable of enclosing the carbon dioxide capture structure; and process steam-directing apparatus in fluid flow connection with the regeneration enclosure, for separating the carbon dioxide from the sorbent and regenerating the sorbent, said process steam being at a temperature of not greater than about 120° C., where the porous silica substrate is comprised of a silica or a mesocellular silica foam.