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:
Aug. 05, 2003
Filed:
Nov. 22, 2002
Applicant:
Inventors:
Sabri Deniz, Grand Island, NY (US);
Gregory William Henzler, East Amherst, NY (US);
Dante Patrick Bonaquist, Grand Island, NY (US);
Assignee:
Praxair Technology, Inc., Danbury, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25J 3/04 ;
U.S. Cl.
CPC ...
F25J 3/04 ;
Abstract
A method for cryogenic air separation wherein at least a portion of the feed air to the cryogenic air separation plant is partially condensed and the resulting two-phase feed air stream is turboexpanded to produce refrigeration and a resulting two-phase feed air stream, which has a liquid portion less than that of the input two-phase feed air stream to the turboexpander, prior to being passed into the cryogenic air separation plant.