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DOE OSTI · 1632522

Method for condensing a CO2 vapor stream beyond the frost point

Baxter, Larry·Davis, Nathan
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Abstract

A method for cryogenic cooling without fouling is disclosed. The method comprises providing a first cryogenic liquid saturated with a dissolved gas; expanding the first cryogenic liquid into a separation vessel, separating into a vapor, a second cryogenic liquid, and a first solid; drawing the vapor into a heat exchanger and the second cryogenic liquid and the first solid out of the separation vessel; cooling the vapor against a coolant through the heat exchanger, causing the vapor to form a third cryogenic liquid and a second solid, the second solid dissolving in the third cryogenic liquid; and combining the second cryogenic liquid and the first solid with the third cryogenic liquid, producing a final cooled slurry. In this manner, the cryogenic cooling is accomplished without fouling.

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Baxter, Larry, Davis, Nathan. 2020-02-04. Method for condensing a CO2 vapor stream beyond the frost point. https://www.osti.gov/biblio/1632522

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