Global Patent Index - EP 2783176 A2

EP 2783176 A2 20141001 - PROCESS AND APPARATUS FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

Title (en)

PROCESS AND APPARATUS FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

Title (de)

VERFAHREN UND VORRICHTUNG ZUR LUFTTRENNUNG DURCH KRYOGENE DESTILLATION

Title (fr)

PROCÉDÉ ET INSTALLATION DE SÉPARATION D'AIR PAR DISTILLATION CRYOGÉNIQUE

Publication

EP 2783176 A2 20141001 (FR)

Application

EP 12806557 A 20121123

Priority

  • FR 1160775 A 20111125
  • FR 2012052707 W 20121123

Abstract (en)

[origin: WO2013076430A2] The invention relates to an apparatus for separating air by cryogenic distillation comprising a compressor (100), an exchange line (4), a system of columns (1), an electric motor (M) for driving the compressor, a duct for extracting a liquid from the system of columns, a pump (6) for applying pressure to the extracted liquid, means enabling heat exchange between the air compressed by the compressor and the liquid (16) pressurized by the pump, and means for lowering the output pressure of the pump depending on the frequency of the electricity powering the electric motor.

IPC 8 full level

F25J 3/04 (2006.01)

CPC (source: EP US)

F25J 3/04 (2013.01 - US); F25J 3/04018 (2013.01 - EP); F25J 3/04024 (2013.01 - EP); F25J 3/04054 (2013.01 - EP); F25J 3/0409 (2013.01 - EP); F25J 3/04133 (2013.01 - EP); F25J 3/0429 (2013.01 - EP); F25J 3/04296 (2013.01 - EP); F25J 3/04412 (2013.01 - EP); F25J 3/04466 (2013.01 - EP); F25J 3/04812 (2013.01 - EP); F25J 2200/06 (2013.01 - EP); F25J 2235/50 (2013.01 - EP)

Citation (search report)

See references of WO 2013076430A2

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2013076430 A2 20130530; WO 2013076430 A3 20150702; CN 104321602 A 20150128; EP 2783176 A2 20141001; FR 2983287 A1 20130531; FR 2983287 B1 20180302; US 2014283550 A1 20140925

DOCDB simple family (application)

FR 2012052707 W 20121123; CN 201280057392 A 20121123; EP 12806557 A 20121123; FR 1160775 A 20111125; US 201214359305 A 20121123