Thermal cycle for the compression of a fluid by the expansion of

Details Thermal cycle for the compression of a fluid by the expansion of Thermal cycle for the compression of a fluid by the expansion of

1972-01-27

1977-05-10

Bernstein, Hiram H.

Refrigeration

Processes

Circulating external gas

62 32, F25J 302

Patent

active

040220303

ABSTRACT:
A method of and an installation for utilizing a thermal cycle by means of which a less volatile fluid can be compressed by the expansion of a more volatile fluid, is characterized in that, in the course of said cycle a less volatile fluid available in a fractionated separation zone working under a low pressure is put into liquid-vapour equilibrium in counter-flow in said separation zone at said low pressure, with one or more light fractions at most as volatile as said more volatile fluid, so as to obtain, under said low pressure, the more volatile fluid and one or more heavy fractions at least as volatile as said less volatile fluid, and in that, after compression of said heavy fraction from said low pressure to a high pressure, the more volatile fluid available in a fractionated mixture zone working under said high pressure is put into liquid-vapour equilibrium in counter-flow in said mixture zone under said high pressure with one or more heavy fractions so as to obtain said less volatile fluid at said high pressure. The invention is applicable to various technical fields including the distillation of mixtures of several constituents and provides a means of recovery in the form of mechanical energy, refrigeration and the like, of a substantial portion of the excess energy consumed in the primary process.

REFERENCES:
patent: 2666019 (1954-01-01), Winn
patent: 2708490 (1955-05-01), Guinot
patent: 2880591 (1959-04-01), Kwauk
patent: 2918802 (1959-12-01), Grunberg
patent: 2970451 (1961-02-01), Ehrlich
patent: 2982107 (1961-05-01), Smith
patent: 3212276 (1965-10-01), Eld

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