EP 0610972 A2 19940817 - Process for preparing nitrogen.
Title (en)
Process for preparing nitrogen.
Title (de)
Stickstoffherstellungsverfahren.
Title (fr)
Procédé de production d'azote.
Publication
Application
Priority
- EP 90402289 A 19900813
- FR 8911009 A 19890818
Abstract (en)
In a process for the production of gaseous nitrogen by cold distillation, the cold requirements of the plant are met by expansion of a portion of the gas to be distilled. The expanded gas is then mixed with a residual gas produced by the plant and sent to the main exchanger (2). <IMAGE>
Abstract (fr)
Dans un procédé de production d'azote gazeux par distillation cryogénique, on assure les besoins en froid de l'installation par détente d'une partie du gaz à distiller. Le gaz détendu est ensuite mélangé avec un gaz résiduaire produit par l'installation et envoyé à l'échangeur principal (2). <IMAGE>
IPC 1-7
IPC 8 full level
F25J 3/04 (2006.01)
CPC (source: EP US)
F25J 3/0429 (2013.01 - EP US); F25J 3/04296 (2013.01 - EP US); F25J 3/04351 (2013.01 - EP US); F25J 3/04357 (2013.01 - EP US); F25J 3/04393 (2013.01 - EP US); F25J 3/044 (2013.01 - EP US); F25J 3/0443 (2013.01 - EP US); F25J 3/04509 (2013.01 - EP US); F25J 2200/50 (2013.01 - EP US); F25J 2200/52 (2013.01 - EP US); F25J 2200/54 (2013.01 - EP US); F25J 2200/72 (2013.01 - EP); F25J 2215/44 (2013.01 - EP US); F25J 2220/42 (2013.01 - EP US); F25J 2245/40 (2013.01 - EP US); F25J 2245/42 (2013.01 - EP US); Y10S 62/901 (2013.01 - EP US); Y10S 62/913 (2013.01 - EP US); Y10S 62/939 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0413631 A1 19910220; EP 0413631 B1 19941228; CA 2023503 A1 19910219; CA 2023503 C 20000627; DE 69015504 D1 19950209; DE 69015504 T2 19950601; DE 69030327 D1 19970430; DE 69030327 T2 19971030; EP 0610972 A2 19940817; EP 0610972 A3 19940928; EP 0610972 B1 19970326; FR 2651035 A1 19910222; FR 2651035 B1 19941223; JP 3162361 B2 20010425; JP H03186183 A 19910814; US 5325674 A 19940705; US 5373699 A 19941220
DOCDB simple family (application)
EP 90402289 A 19900813; CA 2023503 A 19900817; DE 69015504 T 19900813; DE 69030327 T 19900813; EP 94106964 A 19900813; FR 8911009 A 19890818; JP 21507890 A 19900816; US 13329293 A 19931008; US 84394092 A 19920218