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Title:
METHOD FOR SEPARATING AIR BY CRYOGENIC DISTILLATION
Document Type and Number:
WIPO Patent Application WO/2022/175194
Kind Code:
A1
Abstract:
In a method for separating air by cryogenic distillation in a system of columns comprising a first column (K1) operating at a first pressure and a second column (K2) operating at a second pressure which is lower than the first column, the temperature T1 at which an airflow (11) leaves, after cooling, the heat exchanger by rising towards the cold end of said heat exchanger and enters the first column is at least 1°C, preferably at least 2°C, higher than the dew point of the airflow.

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Inventors:
DAVIDIAN BENOIT (FR)
Application Number:
PCT/EP2022/053473
Publication Date:
August 25, 2022
Filing Date:
February 14, 2022
Export Citation:
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Assignee:
AIR LIQUIDE (FR)
International Classes:
F25J1/00
Domestic Patent References:
WO2019126927A12019-07-04
WO2011116981A22011-09-29
WO2020128205A12020-06-25
WO2019126927A12019-07-04
Foreign References:
EP0342436A21989-11-23
EP1319912A12003-06-18
FR3090831A12020-06-26
Other References:
DE KERRY: "Industrial Gas Handbook", 2007, CRC PRESS
Attorney, Agent or Firm:
MERCEY, Fiona (FR)
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