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. 29, 2006
Filed:
Aug. 28, 2002
Applicant:
Henri Paradowski, Cergy, FR;
Inventor:
Henri Paradowski, Cergy, FR;
Assignee:
Technip France, , FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25J 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention concerns a method comprising: (a) a first step whereby natural gas () is subjected to a first refrigerating cycle to obtain cooled natural gas (), and brought to a temperature less than 20° C. by a first coolant (); a second step whereby the cooled natural gas () is subjected to a second refrigerating cycle wherein the cooled natural gas () is cooled and condensed by a second coolant () comprising methane, ethane, propane, and nitrogen. The second coolant () further contains ethylene, the total ethane and ethylene content being close to 50 mole %.