EP 1006326 B1 20040421 - Process and apparatus for the production of pressurised oxygen and krypton/xenon by cryogenic air separation
Title (en)
Process and apparatus for the production of pressurised oxygen and krypton/xenon by cryogenic air separation
Title (de)
Verfahren und Vorrichtung zur Gewinnung von Drucksauerstoff und Krypton/Xenon durch Tieftemperaturzerlegung von Luft
Title (fr)
Procédé et dispositif pour la production d'oxygène sous pression et de krypton/xenon par séparation cryogénique d'air
Publication
Application
Priority
DE 19855487 A 19981201
Abstract (en)
[origin: EP1006326A1] Process for recovering pressurized oxygen and krypton/xenon comprises low temperature decomposition of air in a rectification system consisting of a low pressure column (3) for nitrogen-oxygen separation and a krypton-xenon enriching column (15). Process for recovering pressurized oxygen and krypton/xenon comprises low temperature decomposition of air in a rectification system consisting of a low pressure column (3) for nitrogen-oxygen separation and a krypton-xenon enriching column (15). Pressurized pre-cleaned process air (4, 21-23) is fed into the rectification system. A first oxygen fraction (11) is removed from the low pressure column, placed under pressure using a pump (12), vaporized and removed as gaseous pressurized oxygen product (24). A second oxygen fraction (16) is removed from the low pressure column and fed via line (18) to the lower or middle region of the krypton-xenon enriching column. The first oxygen fraction (11) is removed above the sump of the low pressure column and fed via line (14) to the upper region of the krypton-xenon enriching column. A krypton- and/or xenon-enriched fraction is removed from the lower region of the krypton-xenon enriching column. The gaseous pressurized oxygen product (24) is removed from the top of the krypton-xenon enriching column.
IPC 1-7
IPC 8 full level
F25J 3/04 (2006.01)
CPC (source: EP KR US)
F25J 3/04 (2013.01 - KR); F25J 3/04412 (2013.01 - EP US); F25J 3/04745 (2013.01 - EP US); F25J 2200/34 (2013.01 - EP US); F25J 2200/92 (2013.01 - EP US); F25J 2200/94 (2013.01 - EP US); F25J 2235/50 (2013.01 - EP US)
Designated contracting state (EPC)
DE DK ES FI FR GB IT NL SE
DOCDB simple family (publication)
EP 1006326 A1 20000607; EP 1006326 B1 20040421; CN 1123754 C 20031008; CN 1255620 A 20000607; DE 19855487 A1 20000608; DE 59909230 D1 20040527; DK 1006326 T3 20040809; ES 2219942 T3 20041201; JP 2000180050 A 20000630; KR 100660243 B1 20061220; KR 20000047816 A 20000725; US 6301929 B1 20011016
DOCDB simple family (application)
EP 99102628 A 19990211; CN 99125538 A 19991201; DE 19855487 A 19981201; DE 59909230 T 19990211; DK 99102628 T 19990211; ES 99102628 T 19990211; JP 33742599 A 19991129; KR 19990054115 A 19991201; US 45216799 A 19991201