Dual mixed refrigerant natural gas liquefaction with staged comp

Details Dual mixed refrigerant natural gas liquefaction with staged comp Dual mixed refrigerant natural gas liquefaction with staged comp

1983-10-25

1985-06-25

Sever, Frank

Refrigeration

Processes

Circulating external gas

62 40, F25J 300

Patent

active

045251851

ABSTRACT:
An apparatus and process for liquefying natural gas using two closed-cycle, multicomponent refrigerants; a low level refrigerant which cools the natural gas and a high level refrigerant which cools the low level refrigerant wherein the improvement comprises phase separating the high level refrigerant after compression and fully liquefying the vapor phase stream against external cooling fluid after additional compression.

REFERENCES:
patent: 3964891 (1976-06-01), Krieger
patent: 4112700 (1978-09-01), Forg
patent: 4274849 (1981-06-01), Garier et al.
patent: 4339253 (1982-07-01), Caetani et al.
Paradowski, H., and Squera, O., "La Liquefaction des Gas Associes" 7th International Conference on LNG, May 15-19, 1983, (Abstract in English).

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