Systems and methods for recovering helium from feed streams containing carbon dioxide

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United States of America Patent

PATENT NO 9791210
SERIAL NO

13564871

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Abstract

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Systems and methods are provided for recovering helium from a feed comprising helium, carbon dioxide, and at least one intermediate component having a volatility between those of helium and carbon dioxide. In particular, processes of the present invention comprise separating the carbon dioxide and the components of intermediate volatility from the helium at a temperature greater than −82.7° C. to form a helium-rich product stream, wherein the concentration of at least one of the intermediate components in the helium-rich product stream is lower than its concentration in the feed stream, and wherein at least part of the separation is effected by contacting a vapor with a liquid.

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Patent Owner(s)

Patent OwnerAddress
AIR PRODUCTS AND CHEMICALS INC1940 AIR PRODUCTS BOULEVARD PATENT DEPT ALLENTOWN PA 18106-5500

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Higginbotham, Paul Surrey, GB 73 373
Palamara, John Eugene Macungie, US 17 138
White, Vincent Surrey, GB 49 1065

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