TW343270B - Air separation method and apparatus - Google Patents

Air separation method and apparatus

Info

Publication number
TW343270B
TW343270B TW087105250A TW87105250A TW343270B TW 343270 B TW343270 B TW 343270B TW 087105250 A TW087105250 A TW 087105250A TW 87105250 A TW87105250 A TW 87105250A TW 343270 B TW343270 B TW 343270B
Authority
TW
Taiwan
Prior art keywords
main heat
heat exchanger
compressed air
recycle gas
rectification column
Prior art date
Application number
TW087105250A
Other languages
Chinese (zh)
Inventor
Toshihiro Wakai
Masayuki Tanaka
Original Assignee
Kobe Steel Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Application granted granted Critical
Publication of TW343270B publication Critical patent/TW343270B/en

Links

Landscapes

  • Separation By Low-Temperature Treatments (AREA)

Abstract

An air separation method which comprises supplying a precooled compressed air through a main heat exchanger to a rectification column, passing a recycle gas from the rectification column through the main heat exchanger for utilizing the cooling of the compressed air while discharging a portion of the compressed air flowing through the main heat exchange at a midway in the main heat exchanger to allow adiabatic expansion thereof and supply the air to the rectification column; which is characterized in that a pipeline on the low temperature side of the main heat exchanger at the position where the compressed air is discharged is used as the pipeline for the recycle gas flow through thereby increasing the heat exchange utilization of the recycle gas.
TW087105250A 1997-01-17 1998-04-08 Air separation method and apparatus TW343270B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP691097 1997-01-17
JP11407697A JPH10259988A (en) 1997-01-17 1997-05-01 Air separation method and device

Publications (1)

Publication Number Publication Date
TW343270B true TW343270B (en) 1998-10-21

Family

ID=26341133

Family Applications (1)

Application Number Title Priority Date Filing Date
TW087105250A TW343270B (en) 1997-01-17 1998-04-08 Air separation method and apparatus

Country Status (2)

Country Link
JP (1) JPH10259988A (en)
TW (1) TW343270B (en)

Also Published As

Publication number Publication date
JPH10259988A (en) 1998-09-29

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees