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:
Dec. 31, 1996
Filed:
Aug. 21, 1995
Applicant:
Inventors:
Tamara L Daugherty, Allentown, PA (US);
Christopher F Harris, Old Zionsville, PA (US);
Assignee:
Air Products And Chemicals, Inc., Allentown, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J / ;
U.S. Cl.
CPC ...
62622 ; 62630 ;
Abstract
Natural gas liquids (NGLs) are recovered by cooling and partial condensation of a purified natural gas feed wherein a portion of the necessary feed cooling and condensation duty is provided by expansion and vaporization of condensed feed liquid after methane stripping, thereby yielding a vaporized NGL product. Additional refrigeration for feed cooling is provided by vaporizing methane-stripped liquid, which in turn provides vapor boilup for the stripping step. Recompression and cooling of the vaporized NGL product can be utilized if a liquid product is required.