Cascaded refrigeration cycles for liquefying low-boiling gaseous

Details Cascaded refrigeration cycles for liquefying low-boiling gaseous Cascaded refrigeration cycles for liquefying low-boiling gaseous

1975-01-13

1976-07-20

Lutter, Frank W.

Refrigeration

Processes

Circulating external gas

62 40, 62 54, 62 9, F25J 302

Patent

active

039704416

ABSTRACT:
Process for the at least partial liquefaction of a low-boiling gaseous mixture, which is under pressure, wherein the gaseous mixture is precooled in heat exchange with a vaporizing refrigerant, purified during the course of the precooling step, and, after the precooling step, is subjected to a preliminary separation, characterized in that the at least partial liquefaction of the gaseous fraction obtained during the preliminary separation is carried out in heat exchange with a vaporizing multicomponent gas, the partial liquefaction of which takes place by precooling, and the completed liquefaction and subcooling of which takes place in one stage against itself.

REFERENCES:
patent: 3212276 (1965-10-01), Eld et al.
patent: 3418819 (1968-12-01), Grumburg et al.
patent: 3592015 (1971-07-01), Streich
patent: 3596472 (1971-08-01), Streich
patent: 3721099 (1973-03-01), Forg et al.
patent: 3733838 (1973-05-01), Delahunty
patent: 3763658 (1973-10-01), Gaumer
patent: 3808826 (1974-05-01), Harper et al.
patent: 3818714 (1974-06-01), Etzbach

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