EP 0413631 A1 19910220 - Nitrogen production process.
Title (en)
Nitrogen production process.
Title (de)
Stickstoffgasherstellungsverfahren.
Title (fr)
Procédé de production d'azote.
Publication
Application
Priority
FR 8911009 A 19890818
Abstract (en)
The cooling requirements of the plant are provided, from a fractional distillation (4) at a relatively low pressure, by decompressing (3) one or more fluids including the mixture to be treated, or by decompressing a part of the cycle gas. <IMAGE>
Abstract (fr)
La présente invention concerne un procédé de production d'azote. Selon l'invention, à partir d'une distillation fractionnéee (4), sous pression relativement basse; on assure les besoins en froid de l'installation par détente (3) d'un ou plusieurs fluides dont le mélange à traiter, ou par détente d'une partie du gaz de cycle.
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)
Citation (search report)
- [X] US 4662918 A 19870505 - AGRAWAL RAKESH [US], et al
- [A] EP 0183446 A2 19860604 - UNION CARBIDE CORP [US]
- [A] US 4834785 A 19890530 - AYRES CALVIN L [US]
- [AP] EP 0357299 A1 19900307 - BOC GROUP PLC [GB]
Designated contracting state (EPC)
BE CH DE DK ES FR GB IT LI LU NL SE
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