Method for operating a cryogenic rectification column

Details Method for operating a cryogenic rectification column Method for operating a cryogenic rectification column

1998-10-21

1999-07-13

Capossela, Ronald

Refrigeration

Cryogenic treatment of gas or gas mixture

Separation of gas mixture

62906, F25J 100

Patent

active

059211091

ABSTRACT:
A method for operating a cryogenic rectification column for the separation of the components of air by cryogenic rectification, whereby the column may be operated above its design capacity without encountering flooding, by passing vapor upward through the column at a flowrate which generates a pressure drop within the column of at least 0.7 inches of water per foot of packing height through a height of defined structured packing sheets having a different structure in their upper and lower portions.

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Hanley et al., "Unified Model Four Countercurrent Vapor/Liquid Packed Columns" Ind. Eng. Chem. Res. 1994, 33, 1208-1221.

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