Purification of gases using solid adsorbents

Details Purification of gases using solid adsorbents Purification of gases using solid adsorbents

B - Operations, Transporting

01

D

B01D 53/02 (2006.01) B01D 53/047 (2006.01) B01D 53/053 (2006.01) F25J 3/04 (2006.01)

Patent

CA 2246212

In the purification of air to remove water and carbon dioxide and other contaminants prior to cryogenic separation of oxygen and nitrogen, water and carbon dioxide are adsorbed on a solid adsorbent and are periodically desorbed to regenerate the adsorbent by the passing of a heated regenerating gas such that the quantity of heat added to the regenerating gas to produce desorption is no more than 90 percent of the heat of adsorption liberated during the adsorption of the water and carbon dioxide. The process is applicable to removing other contaminants from other gas streams also.

Dans la purification de l'air pour éliminer l'eau, le dioxyde de carbone et d'autres contaminants avant la séparation cryogénique de l'oxygène et de l'azote, l'eau et le dioxyde de carbone sont adsorbés sur un adsorbant solide et désorbés périodiquement pour régénérer l'adsorbant par passage d'un gaz de régénération chauffé, de telle façon que la quantité de chaleur ajoutée au gaz de régénération pour effectuer la désorption ne dépasse pas 90 % de la chaleur d'adsorption libérée pendant l'adsorption de l'eau et du dioxyde de carbone. Le procédé peut aussi être employé pour éliminer d'autres contaminants dans d'autres flux gazeux.

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