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. 26, 2008
Filed:
Nov. 18, 2005
Applicants:
Anthony P. Eaton, Sugar Land, TX (US);
Wesley R. Qualls, Katy, TX (US);
Inventors:
Anthony P. Eaton, Sugar Land, TX (US);
Wesley R. Qualls, Katy, TX (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process and apparatus for the liquefaction of natural gas including at least one liquid expander for providing expansion of a high-pressure stream and powering a generator capable of producing electricity to be used to drive a compressor located elsewhere in the liquefaction apparatus. Particularly, a liquid expander is used to expand a high-pressure refrigerant stream and to power an electrical generator. The electricity provided by the generator can be used to power a compressor located in the same or a different refrigeration cycle as the liquid expander.