Title: Method of and system for refrigerating a fluid to be cooled down to a low temperature

Abstract: A process of and an apparatus for saving energy in a method of liquefying a natural gas by cooling same with the vapor from a liquid coolant sub-cooled after expansion thereof in the liquid condition, the vapor simultaneously sub-cooling the liquefied coolant, the process consisting in expanding the sub-cooled high-pressure liquid coolant in a hydraulic turbine providing mechanical power possibly for driving a rotary machine.

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Inventors: Paradowski, Henri (Cergy Pontoise, FR)

Application Number: 06/213164
Filing Date: 1980-12-04
Publication_date: 1982-06-15
Assignee: Technip, Cie

Primary Class(es): 62/614 62/402, 62/114
Other Classes: F25J1/02; F25J1/00; F25J1/02
US Patent Ref:

3383873	May, 1968	Becker	62/38
3690114	September, 1972	Swearingen et al.	62/40
3735600	May, 1973	Dowdell et al.	62/39
4094655	June, 1978	Krieger	62/40

Other Refs: DE2049181FR1303516FR2128674FR2409469

October, 1970
July, 1961
March, 1972
November, 1977

Primary Examiner: Yudkoff, Norman
Assistant Examiner:
Attorney: Kenyon & Kenyon

Claims:

What is cla