The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 19, 2019

Filed:

Jan. 04, 2017
Applicant:

Linde Aktiengesellschaft, Munich, DE;

Inventors:

Stefan Lochner, Grafing, DE;

Ralph Spöri, Geretsried, DE;

Christian Zimmermann, Holzkirchen, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J 3/04 (2006.01);
U.S. Cl.
CPC ...
F25J 3/04848 (2013.01); F25J 3/0409 (2013.01); F25J 3/04018 (2013.01); F25J 3/0443 (2013.01); F25J 3/04048 (2013.01); F25J 3/0489 (2013.01); F25J 3/04163 (2013.01); F25J 3/04284 (2013.01); F25J 3/04309 (2013.01); F25J 3/04321 (2013.01); F25J 3/04381 (2013.01); F25J 3/04478 (2013.01); F25J 3/04484 (2013.01); F25J 3/04496 (2013.01); F25J 3/04787 (2013.01); F25J 3/04872 (2013.01); F25J 2200/30 (2013.01); F25J 2200/94 (2013.01); F25J 2215/42 (2013.01); F25J 2215/52 (2013.01); F25J 2215/56 (2013.01); F25J 2220/02 (2013.01); F25J 2220/50 (2013.01); F25J 2230/08 (2013.01); F25J 2230/40 (2013.01); F25J 2230/50 (2013.01); F25J 2245/02 (2013.01); F25J 2250/20 (2013.01); F25J 2280/20 (2013.01); F25J 2290/12 (2013.01); F25J 2290/34 (2013.01); F25J 2290/60 (2013.01); F25J 2290/62 (2013.01);
Abstract

A method for obtaining an air product from an air separation plant having a distillation column system and a tank system. The tank system includes a first tank and a second tank. Cryogenic liquid is withdrawn from the distillation column system, stored in the tank system, and used as the air product. The cryogenic liquid is supplied to the first tank and withdrawn from the second tank during a first period, and is supplied to the second tank and withdrawn from the first tank during a second period. The tank system has a third tank to which cryogenic liquid withdrawn from the first tank and the second tank is transferred unheated. The air product is withdrawn from the third tank in liquid state, vaporized and discharged. Alternatively, the cryogenic liquid can be withdrawn from the third tank and stored in the liquid state in a fourth tank.


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