Process for sub-cooling an LNG stream obtained by cooling by...

Details Process for sub-cooling an LNG stream obtained by cooling by... Process for sub-cooling an LNG stream obtained by cooling by...

2006-04-07

2009-06-30

Doerrler, William C (Department: 3744)

Refrigeration

Cryogenic treatment of gas or gas mixture

Liquefaction

C062S612000

Reexamination Certificate

active

07552598

ABSTRACT:
In this process, the LNG stream is sub-cooled with a refrigerating fluid in a first heat exchanger. This refrigerating fluid undergoes a closed second refrigeration cycle which is independent of the first cycle. The closed cycle comprises a phase of heating the refrigerating fluid in a second heat exchanger, and a phase of compressing the refrigerating fluid in a compression apparatus to a pressure greater than its critical pressure. It further comprises a phase of cooling the refrigerating fluid originating from the compression apparatus in the second heat exchanger and a phase of dynamically expanding of a proportion of the refrigerating fluid issuing from the second heat exchanger in a turbine. The refrigerating fluid is formed by a mixture of nitrogen-containing fluids.

REFERENCES:
patent: 3559418 (1971-02-01), Hoffman
patent: 3818714 (1974-06-01), Etzbach et al.
patent: 4334902 (1982-06-01), Paradowski
patent: 6082136 (2000-07-01), Yoshino
patent: 6308531 (2001-10-01), Roberts et al.
patent: 2003/0089125 (2003-05-01), Fredheim et al.
patent: 2004/0182108 (2004-09-01), Roberts
patent: 2004/0255617 (2004-12-01), Paradowski
patent: 2005/0056051 (2005-03-01), Roberts et al.
patent: 24 40 215 (1974-08-01), None
patent: 896663 (1962-05-01), None
French Search Report FR0503575 dated Dec. 14, 2005.

Affiliated with

Also associated with

Rating

Process for sub-cooling an LNG stream obtained by cooling by... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for sub-cooling an LNG stream obtained by cooling by..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for sub-cooling an LNG stream obtained by cooling by... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4137911