Global Patent Index - EP 0580345 B1

EP 0580345 B1 19960214 - Elevated pressure liquefier

Title (en)

Elevated pressure liquefier

Title (de)

Hochdruckverflüssiger

Title (fr)

Liquéfacteur à pression élevée

Publication

EP 0580345 B1 19960214 (EN)

Application

EP 93305480 A 19930713

Priority

US 91656592 A 19920720

Abstract (en)

[origin: EP0580345A1] The energy efficiency of dual cryogenic distillation of air to produce liquid product in which refrigeration is generated by an expander scheme is improved by operating the low pressure distillation column (721) at an elevated pressure (170 to 350 kPa) vis-a-vis the prior art. <IMAGE>

IPC 1-7

F25J 3/04; F25J 3/02

IPC 8 full level

F25J 3/04 (2006.01)

CPC (source: EP KR)

F25J 3/04296 (2013.01 - EP KR); F25J 3/04315 (2013.01 - EP KR); F25J 3/04345 (2013.01 - EP KR); F25J 3/04351 (2013.01 - EP KR); F25J 3/04393 (2013.01 - EP KR); F25J 3/04412 (2013.01 - EP KR); F25J 3/04678 (2013.01 - EP KR); F25J 2200/20 (2013.01 - EP KR); F25J 2200/52 (2013.01 - EP KR); F25J 2205/02 (2013.01 - EP KR); F25J 2245/42 (2013.01 - EP KR)

Designated contracting state (EPC)

BE DE ES FR GB IT NL

DOCDB simple family (publication)

EP 0580345 A1 19940126; EP 0580345 B1 19960214; CA 2100402 A1 19940121; DE 69301555 D1 19960328; DE 69301555 T2 19960801; ES 2085116 T3 19960516; JP H06159929 A 19940607; KR 940002589 A 19940217

DOCDB simple family (application)

EP 93305480 A 19930713; CA 2100402 A 19930713; DE 69301555 T 19930713; ES 93305480 T 19930713; JP 17777393 A 19930719; KR 930013420 A 19930716