Apparatus and method for recovering liquefied natural gas vapor

Refrigeration – Processes – Circulating external gas

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62 40, 62 54, 220 85VR, F25J 302

Patent

active

046750371

ABSTRACT:
A portion of the boiloff from LNG storage container is revaporized and recycled during reliquefaction process to control the concentration of nitrogen and to provide upper limit temperature control.

REFERENCES:
patent: 3195316 (1965-07-01), Maher et al.
patent: 3602002 (1971-08-01), Bailey et al.
patent: 3857245 (1974-12-01), Jones
patent: 3857251 (1974-12-01), Alleaume
patent: 4010779 (1977-03-01), Pollock et al.
patent: 4017283 (1977-12-01), Witt
patent: 4249387 (1981-02-01), Crowley
P. Wicker, Sulzer Bros. Ltd., Reliquefaction of LNG Boiloff Gas, The Oil and Gas Journal, Jan. 18, 1971, pp. 53-55.

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