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.
Patent No.:
Date of Patent:
Jul. 25, 2023
Filed:
Dec. 25, 2017
Alain Briglia, Hangzhou, CN;
Remy Kurtz, Hangzhou, CN;
Eric Day, Hangzhou, CN;
Huali Xie, Hangzhou, CN;
Baptiste Fara, Hangzhou, CN;
L'air Liquide, Societe Anonyme Pour L'etude ET L'exploitation Des Procedes Georges Claude, Paris, FR;
Alain Briglia, Hangzhou, CN;
Remy Kurtz, Hangzhou, CN;
Eric Day, Hangzhou, CN;
Huali Xie, Hangzhou, CN;
Baptiste Fara, Hangzhou, CN;
Abstract
A cryogenic air separation setup in a cold box, wherein gaseous oxygen under elevated pressure is produced through hydraulic force caused by the geodetic distance between where liquid oxygen is drawn from the distillation column and where liquid oxygen is vaporized to form gaseous oxygen, such as in an auxiliary evaporator. To increase the vertical distance between the above-mentioned two location, the components are arranged directly below one another in the following sequence: the lower-pressure column, the main condenser evaporator, the higher-pressure column, the subcooler, the main heat exchanger and the auxiliary evaporator). In particular, the main heat-exchanger is positioned with the cold-end on the top to optimize piping expenditure.