Title:
DEVICE AND METHOD FOR SEPARATING AIR BY CRYOGENIC DISTILLATION
Document Type and Number:
WIPO Patent Application WO/2012/127148
Kind Code:
A3
Abstract:
Device for separating air comprises a pipe for withdrawing liquid oxygen from the low-pressure column and for sending it to a first pump (39), a pipe for sending liquid oxygen that has been pressurized to a pressure of below 9 bar abs from the first pump to a vaporizer (41), a pipe for sending gaseous oxygen from the vaporizer to a main exchanger (21) where it is heated up, a pipe for sending liquid oxygen for purging from the vaporizer to a second pump (63) to pressurize it and a pipe for sending the pressurized oxygen from the second pump to an exchanger where it vaporizes to form gaseous oxygen.
Inventors:
COGNARD MARIE (FR)
DAVIDIAN BENOIT (FR)
DUBETTIER-GRENIER RICHARD (FR)
DAVIDIAN BENOIT (FR)
DUBETTIER-GRENIER RICHARD (FR)
Application Number:
PCT/FR2012/050500
Publication Date:
December 04, 2014
Filing Date:
March 09, 2012
Export Citation:
Assignee:
AIR LIQUIDE (FR)
COGNARD MARIE (FR)
DAVIDIAN BENOIT (FR)
DUBETTIER-GRENIER RICHARD (FR)
COGNARD MARIE (FR)
DAVIDIAN BENOIT (FR)
DUBETTIER-GRENIER RICHARD (FR)
International Classes:
F25J3/04
Domestic Patent References:
| WO2010109149A2 | 2010-09-30 |
Foreign References:
| EP2573492A1 | 2013-03-27 | |||
| EP1746374A2 | 2007-01-24 | |||
| US5408831A | 1995-04-25 | |||
| US4796431A | 1989-01-10 | |||
| GB1425450A | 1976-02-18 |
Other References:
PETRAS ET AL: "oxygen plants for coal gasifiaction: Experience at the Cool Water GCC Power Plant", PUBLICATION BOC CRYOPLANTS, BOC CRYOPLANTS ENGINEERING CENTRE, GUILDFORD, GB, 1 September 1987 (1987-09-01), XP007905885
Attorney, Agent or Firm:
MERCEY, Fiona (Direction Propriété Intellectuelle75 Quai d'Orsay, Paris Cedex 07, FR)
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