Method and plant for liquefying a gas with low boiling temperatu

Details Method and plant for liquefying a gas with low boiling temperatu Method and plant for liquefying a gas with low boiling temperatu

1979-08-21

1981-06-23

Yudkoff, Norman

Refrigeration

Using electrical or magnetic effect

Thermoelectric; e.g., peltier effect

62 38, 62 40, 62335, F25J 102

Patent

active

042748496

ABSTRACT:
Method of liquefying a mixture of gas rich in methane by performing an auxiliary cycle and a main cycle in which are used an auxiliary and a main refrigerating fluid of several components. In each cycle are performed the compression, cooling, liquefying and sub-cooling of the refrigerating fluids in counter-flowing relationship with themselves after expansion-vaporization in a heat exchanger. The gas to be liquefied is cooled in parallel with said main refrigerating fluid which has been pre-cooled in the auxiliary cycle. Pre-cooling of said gas is performed in an exchanger cooled by the refrigerating main fluid after its expansion-vaporization in said heat exchanging column of said main cycle and before its re-compression.

REFERENCES:
patent: 3964891 (1976-06-01), Krieger

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