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US 5,492,683 AGranted
Regenerable supported amine-polyol sorbent
AssigneeUnited Technologies Corporation
InventorsPhilip J. Birbara, Timothy A. Nalette
Life of this patent
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Abstract
The supported amine-polyol sorbent of the present invention comprises about 1 wt. % to about 25 wt. % amine, about 1 wt. % to about 25 wt. % polyol, with the balance being support. This sorbent is capable of absorbing and desorbing carbon dioxide at relatively high rates at ambient temperatures, thereby improving carbon dioxide sorption capacity.
Claims7
A regenerable carbon dioxide removal process comprising the steps of:
- a. passing a gaseous stream containing carbon dioxide through a sorbent bed, wherein said sorbent is formed from a supported amine-polyol sorbent having about 1 wt. % to about 25 wt. % polyol and about 1 wt. % to about 25 wt. % amine, with the balance being support;
- b. absorbing the carbon dioxide into said sorbent;
- and
- c. desorbing the absorbed carbon dioxide to regenerate the sorbent.
1 more element
Dependencies are inferred from the claim text.