EP 0547946 A1 19930623 - Process and apparatus for the production of impure oxygen.
Title (en)
Process and apparatus for the production of impure oxygen.
Title (de)
Verfahren und Apparat zur Herstellung unreinen Sauerstoffs.
Title (fr)
Procédé et installation de production d'oxygène impur.
Publication
Application
Priority
FR 9115705 A 19911218
Abstract (en)
According to this process: - the intermediate pressure column (2) is operated at a pressure higher than 6 bars and preferably of at least approximately 9 bars absolute; - a first vaporization gas which is less volatile than nitrogen from the top of the intermediate pressure column (2) is condensed in the vessel condenser (8) of the low pressure column (3); and - nitrogen from the top of the intermediate pressure column is condensed and is then conveyed as reflux to the top of the intermediate pressure column, at a level of the low pressure column (3) which is situated above the said vessel condenser (8). Application to twin-column air distillation plants coupled to a gas turbine. <IMAGE>
Abstract (fr)
Suivant ce procédé : on fait fonctionner la colonne moyenne pression (2) sous une pression supérieure à 6 bars et de préférence au moins égale à 9 bars absolus environ; on condense dans le condenseur de cuve (8) de la colonne basse pression (3) un premier gaz de vaporisation moins volatil que l'azote de tête de la colonne moyenne pression (2); et on condense de l'azote de tête de la colonne moyenne pression, que l'on envoie ensuite en reflux en tête de la colonne moyenne pression, à un niveau de la colonne basse pression (3) situé au-dessus dudit condenseur de cuve (8). Application aux installations de distillation d'air à double colonne couplées à une turbine à gaz. <IMAGE>
IPC 1-7
IPC 8 full level
F25J 3/04 (2006.01)
CPC (source: EP US)
F25J 3/0409 (2013.01 - EP US); F25J 3/04206 (2013.01 - EP US); F25J 3/04303 (2013.01 - EP US); F25J 3/04351 (2013.01 - EP US); F25J 3/04418 (2013.01 - EP US); F25J 2200/20 (2013.01 - EP US); F25J 2200/52 (2013.01 - EP US); F25J 2200/54 (2013.01 - EP US); F25J 2200/90 (2013.01 - EP US); F25J 2210/42 (2013.01 - EP US); F25J 2215/50 (2013.01 - EP US); F25J 2250/10 (2013.01 - EP US); F25J 2250/20 (2013.01 - EP US); F25J 2250/40 (2013.01 - EP US); F25J 2250/50 (2013.01 - EP US); Y10S 62/939 (2013.01 - EP US)
Citation (search report)
- [A] US 4448595 A 19840515 - CHEUNG HARRY [US]
- [A] US 5069699 A 19911203 - AGRAWAL RAKESH [US]
- [A] US 4704147 A 19871103 - KLEINBERG WILLIAM T [US]
Designated contracting state (EPC)
BE DE ES FR GB IT NL SE
DOCDB simple family (publication)
EP 0547946 A1 19930623; EP 0547946 B1 19961009; EP 0547946 B2 20000322; AU 3022192 A 19930624; AU 654601 B2 19941110; BR 9205050 A 19930810; CA 2085561 A1 19930619; CN 1068428 C 20010711; CN 1088301 A 19940622; DE 69214409 D1 19961114; DE 69214409 T2 19970522; DE 69214409 T3 20000713; DE 69230975 D1 20000531; DE 69230975 T2 20001005; EP 0713069 A1 19960522; EP 0713069 B1 20000426; ES 2092661 T3 19961201; ES 2145967 T3 20000716; FR 2685459 A1 19930625; FR 2685459 B1 19940211; US 5392609 A 19950228
DOCDB simple family (application)
EP 92403330 A 19921209; AU 3022192 A 19921217; BR 9205050 A 19921217; CA 2085561 A 19921216; CN 92114490 A 19921217; DE 69214409 T 19921209; DE 69230975 T 19921209; EP 96200235 A 19921209; ES 92403330 T 19921209; ES 96200235 T 19921209; FR 9115705 A 19911218; US 99010092 A 19921214