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. 02, 2002
Filed:
Apr. 06, 2001
Applicant:
Inventor:
Jorge H. Foglietta, Missouri City, TX (US);
Assignee:
ABB Lummus Global, Inc. - Randall Division, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J 1/00 ; F25J 3/00 ;
U.S. Cl.
CPC ...
F25J 1/00 ; F25J 3/00 ;
Abstract
A process for producing a liquified natural gas stream that includes cooling at least a portion of a pressurized natural gas feed stream by heat exchange contact with first and second expanded refrigerants that are used in independent refrigeration cycles. The first expanded refrigerant is selected from methane, ethane and treated and pressurized natural gas. The second expanded refrigerant is nitrogen.