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:
May. 13, 2025
Filed:
Aug. 01, 2022
Applicant:
Air Products and Chemicals, Inc., Allentown, PA (US);
Inventors:
Donn Michael Herron, Fogelsville, PA (US);
Qiao Zhao, Macungie, PA (US);
Assignee:
AIR PRODUCTS AND CHEMICALS, INC., Allentown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J 3/04 (2006.01);
U.S. Cl.
CPC ...
F25J 3/04412 (2013.01); F25J 3/04018 (2013.01); F25J 3/04187 (2013.01); F25J 3/04351 (2013.01); F25J 3/04363 (2013.01); F25J 3/04666 (2013.01); F25J 2200/06 (2013.01); F25J 2200/34 (2013.01); F25J 2210/06 (2013.01); F25J 2210/40 (2013.01); F25J 2215/42 (2013.01); F25J 2215/58 (2013.01); F25J 2270/42 (2013.01); F25J 2270/50 (2013.01);
Abstract
A process for recovering at least one fluid (e.g. argon gas and/or nitrogen gas, etc.) from a feed gas (e.g. air) can provide an improved recovery of argon and/or nitrogen as well as an improvement in operational efficiency. Some embodiments can be adapted so that at least a portion of a mixed nitrogen-oxygen fluid is at least partially vaporized and fed to a low pressure column.