Integrated multicomponent refrigerant and air separation process for producing liquid oxygen

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12117240
APP PUB NO 20230018749A1
SERIAL NO

17868167

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A process for the production of a liquid oxygen stream by the cryogenic rectification of an inlet air stream, including dividing the inlet air stream into a first portion, and a second portion. Cooling the first portion, and the second portion against a cooled multicomponent refrigerant circuit, thereby producing a first cooled portion, and a second cooled portion. Condensing the first cooled portion, thereby producing a condensed first portion, then introducing the condensed first portion into one or more distillation columns. Expanding the second cooled portion in a turbo-expander, thereby producing an expanded second portion, then introducing the expanded second portion within the one or more distillation columns. Producing within the one or more distillation columns at least a waste nitrogen stream, a nitrogen enriched stream, and an oxygen enriched stream. Withdrawing the oxygen enriched stream from the one or more distillation columns as a liquid oxygen stream.

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Patent Owner(s)

Patent OwnerAddress
L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE75007 PARIS

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Guillard, Alain Dana Point, US 112 510
Turney, Michael A Houston, US 54 216

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