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Title:
METHOD AND FACILITY FOR PRODUCING OXYGEN THROUGH AIR DISTILLATION
Document Type and Number:
WIPO Patent Application WO/2011/030050
Kind Code:
A3
Abstract:
In a method for producing oxygen through the distillation of air supplied by air at atmospheric pressure so as to produce a first and second compressed air flow, and through a first purification unit (5) and a second purification unit (7), the first and second compressed air flows being discharged from the compression means at a first and second pressure, the first and second pressures being different pressures of at least 0.5 bar: the first compressed air flow is sent from a first outlet of the compression means to the first purifying unit at the first pressure so as to produce a first purified air flow; the first purified air flow is sent from the first purifying unit to a column of the column system (15); the second purified air flow is sent, in an at least partially condensed form, from the second purifying unit to a column of the column system; an oxygen-rich liquid is bled off from the column system; said oxygen-rich liquid is vaporized through heat exchange with at least the second purified air flow; and said oxygen-rich liquid is provided as a material.

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Inventors:
COGNARD MARIE (FR)
DUBETTIER-GRENIER RICHARD (FR)
Application Number:
PCT/FR2010/051854
Publication Date:
January 09, 2014
Filing Date:
September 07, 2010
Export Citation:
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Assignee:
AIR LIQUIDE (FR)
COGNARD MARIE (FR)
DUBETTIER-GRENIER RICHARD (FR)
International Classes:
F25J3/04
Domestic Patent References:
WO2011157431A22011-12-22
Foreign References:
US5337570A1994-08-16
US20020116945A12002-08-29
US5666823A1997-09-16
US6141950A2000-11-07
US4342201A1982-08-03
US5571309A1996-11-05
EP1223396A12002-07-17
Other References:
ALLAM ET AL: "Improved oxygen production technologies", ENERGY PROCEDIA, ELSEVIER, NL, vol. 1, no. 1, 1 February 2009 (2009-02-01), pages 461 - 470, XP026471909, ISSN: 1876-6102, [retrieved on 20090201], DOI: 10.1016/J.EGYPRO.2009.01.062
Attorney, Agent or Firm:
MERCEY, Fiona (Département Propriété Intellectuelle75 Quai d'Orsay, Paris Cedex 07, FR)
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