Process and plant for supplying carbon dioxide under high pressu

Details Process and plant for supplying carbon dioxide under high pressu Process and plant for supplying carbon dioxide under high pressu

1987-02-09

1988-06-21

Capossela, Ronald C.

Refrigeration

Low pressure cold trap process and apparatus

62384, F17C 702

Patent

active

047518227

ABSTRACT:
A process and apparatus for bringing CO.sub.2 from a storage tank wherein it is stored at a medium pressure and below 0.degree. C. (e.g. -20.degree. C. and 20 bars pressure) to a high pressure such as 80-130 bars, without utilizing any pump operating below 0.degree. C. The build-up of ice on such a pump is thus avoided. To do this, liquid from the tank is caused to completely fill by gravity an intermediate vessel. Then the vessel is heated to about ambient temperature; and while maintaining such temperature (e.g. by means of resistor 16), the liquid in the vessel is subcooled by compression in FIG. 1 or by cooling water in FIG. 2, and conveyed to the inlet of the high pressure pump.

REFERENCES:
patent: 2632302 (1953-03-01), Steele
patent: 2657541 (1953-11-01), Schilling
patent: 3053054 (1962-09-01), Vignier
patent: 3106071 (1963-10-01), Green et al.
patent: 3112617 (1963-12-01), Hashemi-Tafreshi
patent: 3282305 (1966-11-01), Antolak
patent: 3760599 (1973-09-01), Bose
patent: 4175395 (1979-11-01), Prost et al.
patent: 4554791 (1985-11-01), Johansson

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