Method and device for separating a mixture containing carbon dioxide by means of distillation

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United States of America Patent

PATENT NO 9903648
SERIAL NO

14384191

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Abstract

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According to certain embodiments of the invention, a gas containing at least 50% of carbon dioxide is cooled in a first exchanger so as to produce a cooled fluid, a liquid derived from the cooled fluid is sent to a distillation column to be separated therein, a head gas is withdrawn from the distillation column and reheated in the first exchanger, a vat liquid, which is richer in carbon dioxide than the gas containing at least 50% of carbon dioxide, is withdrawn and at least a portion thereof is heated in the first exchanger, at least a first portion of the vat liquid is vaporized in the first exchanger in order to produce a vaporized portion, the vaporized portion is sent back to the column and an NOx removal column is supplied with the liquefied cycle gas produced by vaporizing and reliquefying the vat liquid from the column.

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Patent Owner(s)

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

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Briglia, Alain Hangzhou, CN 56 71
Darde, Arthur Paris, FR 53 389
Lockwood, Frederick Paris, FR 13 54
Traversac, Xavier Paris, FR 13 36

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