EP 3438586 A1 20190206 - METHOD AND DEVICE FOR AIR SEPARATION BY CRYOGENIC DISTILLING
Title (en)
METHOD AND DEVICE FOR AIR SEPARATION BY CRYOGENIC DISTILLING
Title (de)
GERÄT UND VERFAHREN ZUR TRENNUNG VON LUFT DURCH KRYOGENE DESTILLATION
Title (fr)
APPAREIL ET PROCÉDÉ DE SÉPARATION D'AIR PAR DISTILLATION CRYOGÉNIQUE
Publication
Application
Priority
- FR 1757497 A 20170803
- FR 1757493 A 20170803
- FR 1757495 A 20170803
- FR 1757498 A 20170803
Abstract (en)
[origin: US2019041130A1] Method for separating air by cryogenic distillation, wherein air is compressed in a compressor and is subsequently sent to a heat exchanger, with the air cooled in the exchanger being sent to a check valve downstream of the heat exchanger and subsequently to a turbine, the valve being positioned so that air from a short-circuiting duct cannot return to the exchanger from the compressor.
Abstract (fr)
Procédé de séparation d'air par distillation cryogénique dans lequel on surpresse au moins une partie de l'air à distiller dans un surpresseur d'air (C2), on détend dans au moins une turbine de détente (T2, T1) de l'air comprimé et si la perte de charge entre deux points du surpresseur passe en dessous d'un seuil et/ou un débit du surpresseur passe en dessous d'un débit minimal du surpresseur, on détend une partie de l'air surpressé dans le surpresseur sans l'avoir refroidi entre le surpresseur et la détente et on envoie l'air surpressé détendu en amont ou en aval de l'au moins une turbine, sans avoir été refroidi dans l'échangeur de chaleur après avoir été surpressé.
IPC 8 full level
F25J 3/04 (2006.01)
CPC (source: CN EP US)
F25J 3/0295 (2013.01 - US); F25J 3/04012 (2013.01 - US); F25J 3/04018 (2013.01 - CN); F25J 3/04024 (2013.01 - EP US); F25J 3/04054 (2013.01 - EP US); F25J 3/0406 (2013.01 - US); F25J 3/04066 (2013.01 - US); F25J 3/0409 (2013.01 - EP); F25J 3/04109 (2013.01 - US); F25J 3/04127 (2013.01 - US); F25J 3/04175 (2013.01 - EP); F25J 3/04187 (2013.01 - CN US); F25J 3/04193 (2013.01 - US); F25J 3/0423 (2013.01 - US); F25J 3/04254 (2013.01 - EP US); F25J 3/04296 (2013.01 - EP US); F25J 3/04381 (2013.01 - US); F25J 3/04393 (2013.01 - EP US); F25J 3/04406 (2013.01 - US); F25J 3/04412 (2013.01 - EP US); F25J 3/04563 (2013.01 - CN); F25J 3/04775 (2013.01 - US); F25J 3/04781 (2013.01 - CN EP US); F25J 3/04787 (2013.01 - US); F25J 3/04812 (2013.01 - US); F25J 3/04818 (2013.01 - EP US); F25J 3/04824 (2013.01 - EP US); F25J 3/0486 (2013.01 - US); F25J 3/04866 (2013.01 - US); F25J 3/04896 (2013.01 - US); F25J 2200/04 (2013.01 - US); F25J 2210/40 (2013.01 - CN); F25J 2210/42 (2013.01 - EP); F25J 2215/42 (2013.01 - US); F25J 2215/50 (2013.01 - US); F25J 2230/08 (2013.01 - US); F25J 2230/22 (2013.01 - US); F25J 2230/40 (2013.01 - EP US); F25J 2240/04 (2013.01 - EP US); F25J 2240/10 (2013.01 - EP US); F25J 2240/42 (2013.01 - EP US); F25J 2245/40 (2013.01 - EP US); F25J 2280/10 (2013.01 - US); F25J 2280/20 (2013.01 - US); F25J 2290/12 (2013.01 - US)
Citation (search report)
- [A] FR 2851330 A1 20040820 - AIR LIQUIDE [FR] & EP 0644388 A1 19950322 - BOC GROUP INC [US]
- [A] GB 1500610 A 19780208 - NUOVO PIGNONE SPA
- [A] CN 201173660 Y 20081231 - HANGZHOU FUSIDA GAS EQUIPMENT [CN]
- [A] MACCONNELL: "Process Control and Optimization, Vol. II, Chapter 8.37 - Separation Controls, Air", 1 January 2006 (2006-01-01), pages 2123 - 2136, XP055173780, Retrieved from the Internet <URL:ftp://ftp.ucauca.edu.co/Facultades/FIET/DEIC/Materias/Instrumentacion%20Industrial/Instrument%20Engineers'%20Handbook,%20Fourth%20Edition,%20Volume%20Two-%20Process%20Control%20and%20Optimization/1081ch8_37.pdf> [retrieved on 20150304]
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)
EP 3438585 A2 20190206; EP 3438585 A3 20190417; CN 109387031 A 20190226; CN 109387031 B 20211102; CN 109387032 A 20190226; CN 109387033 A 20190226; CN 109387033 B 20211214; CN 109387034 A 20190226; CN 109387034 B 20211119; EP 3438584 A1 20190206; EP 3438584 B1 20200311; EP 3438586 A1 20190206; EP 3438586 B1 20200408; EP 3438587 A1 20190206; EP 3438587 B1 20200408; PL 3438586 T3 20200907; PL 3438587 T3 20200907; US 10794630 B2 20201006; US 10866024 B2 20201215; US 2019041129 A1 20190207; US 2019041130 A1 20190207; US 2019049177 A1 20190214; US 2019049178 A1 20190214
DOCDB simple family (application)
EP 18186659 A 20180731; CN 201810875560 A 20180803; CN 201810877089 A 20180803; CN 201810877101 A 20180803; CN 201810877672 A 20180803; EP 18186654 A 20180731; EP 18186782 A 20180801; EP 18187381 A 20180803; PL 18186782 T 20180801; PL 18187381 T 20180803; US 201816054213 A 20180803; US 201816054223 A 20180803; US 201816054240 A 20180803; US 201816054350 A 20180803