Title:
クリプトン及び/又はキセノンの回収方法及び装置
Document Type and Number:
Japanese Patent JP5085835
Kind Code:
B2
Abstract:
Krypton and/or xenon is separated crudely from an oxygen product comprising oxygen and at least one rare gas selected from the group consisting of krypton and xenon in a distillation process using a rare gas recovery system comprising a distillation system 16. The oxygen product 108 is produced in a cryogenic air separation process operating a pumped LOX cycle. The pressure of the oxygen product 108 is greater than the operating pressure of the part of the cryogenic ASU producing LOX and at least about 50 mol % of the oxygen product 108 is fed to the rare gas recovery system 16 in the gaseous phase. One advantage of a preferred embodiment of the present invention is that it can easily be retrofitted to existing pumped LOX cycle ASUs.
Inventors:
Paul Higginbotham
Kelvin Graham Hayes
Declan Patrick O'Connor
Kelvin Graham Hayes
Declan Patrick O'Connor
Application Number:
JP2003413573A
Publication Date:
November 28, 2012
Filing Date:
December 11, 2003
Export Citation:
Assignee:
AIR PRODUCTS AND CHEMICALS INCORPORATED
International Classes:
B01D53/04; F25J3/04; B01D53/02; C01B23/00; F25J3/02
Domestic Patent References:
| JP4151488A | ||||
| JP92808A | ||||
| JP5428314B2 | ||||
| JP2002306918A |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Nagasaka Tomoyasu
Yoshihiro Kobayashi
Atsushi Ebiya
Takashi Ishida
Tetsuji Koga
Nagasaka Tomoyasu
Yoshihiro Kobayashi
Atsushi Ebiya