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:
Oct. 13, 2009
Filed:
Jun. 24, 2004
Applicants:
Anthony P. Eaton, Sugar Lane, TX (US);
Bobby D. Martinez, Missouri City, TX (US);
Jame Yao, Sugar Land, TX (US);
Inventors:
Anthony P. Eaton, Sugar Lane, TX (US);
Bobby D. Martinez, Missouri City, TX (US);
Jame Yao, Sugar Land, TX (US);
Assignee:
ConocoPhillips Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25J 1/00 (2006.01); F25J 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process and apparatus for the liquefaction of natural gas including an improved heavy hydrocarbon removal column with overhead condensing and refluxing. Particularly, a methane-rich stream exiting a propane refrigerant cycle is delivered to a heavies removal column, and the heavies depleted vapor from the column is at least partially condensed and the liquid portion provided as reflux to the heavies removal column.