Method and unit for low-temperature air separation

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United States of America Patent

PATENT NO 11846468
SERIAL NO

17287854

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Abstract

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The invention relates to a method for a low-temperature air separation in which an air separation unit is used comprising a first rectification column and a second rectification column. The first rectification column is operated at a first pressure level, and the second rectification column is operated at a second pressure level below the first pressure level. Fluid which is oxygen-enriched compared to atmospheric air is drawn from the first rectification column in the form of one or more first material flows. At least one fraction of the fluid which has been drawn from the first rectification column in the form of the one or more first material flows is heated in a heat exchanger; a fraction of the fluid which has been heated in the heat exchanger is compressed using a compressor and is returned to the first rectification column.

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Patent Owner(s)

Patent OwnerAddress
LINDE GMBHDR -CARL-VON-LINDE-STR 6-14 PULLACH 82049

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Golubev, Dimitri Geretsried, DE 26 7
Haag, Wolfgang Stadtbergen, DE 12 57
Kirchner, Lars Dresden, DE 4 2
Kunz, Christian Munich, DE 21 192
Lautenschlager, Tobias Gröbenzell, DE 7 6
Lochner, Stefan Grafing, DE 27 30

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