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OPTIMIZED HEAT EXCHANGE IN A CO2 DE-SUBLIMATION PROCESS

United States Patent Application

*** PATENT GRANTED ***
20160290714
9,766,011
A1
View the Complete Application at the US Patent & Trademark Office
The present invention is a process for removing carbon dioxide from a compressed gas stream including cooling the compressed gas in a first heat exchanger, introducing the cooled gas into a de-sublimating heat exchanger, thereby producing a first solid carbon dioxide stream and a first carbon dioxide poor gas stream, expanding the carbon dioxide poor gas stream, thereby producing a second solid carbon dioxide stream and a second carbon dioxide poor gas stream, combining the first solid carbon dioxide stream and the second solid carbon dioxide stream, thereby producing a combined solid carbon dioxide stream, and indirectly exchanging heat between the combined solid carbon dioxide stream and the compressed gas in the first heat exchanger.
BAXTER, Larry (Orem, UT), TERRIEN, Paul (Baltimore, MD), TESSIER, Pascal (Wilmington, DE), HOEGER, Christopher (Provo, UT)
L'Air Liquide, Societe Anonyme pour l'Etude et I'Exploitation des Procedes Georges Claude (Paris FR)
15/ 182,494
June 14, 2016
GOVERNMENT LICENSE RIGHTS [0002] This invention was made with government support under Award No. DE-AR0000101 awarded by U.S. Department of Energy (DOE). The government has certain rights in the invention.