Heat pump fractionation process

Details Heat pump fractionation process Heat pump fractionation process

1979-10-17

1981-07-07

Sever, Frank

Refrigeration

Processes

Circulating external gas

62 30, 203 24, 203 26, 208350, B01D 314

Patent

active

042772680

ABSTRACT:
A process for fractionating two or more compounds in which the stripping section of the fractionator is maintained at a first pressure and the rectifying section of the fractionator is maintained at a higher pressure. Overhead vapors from the stripping section are compressed in a heat pump where the vapor temperature and pressure are raised, and the heated and compressed vapors are then fed to the bottom of the rectifying section. Overhead vapors from the rectifying section, at a higher temperature than the bottoms from the stripping section, are heat exchanged with stripping section bottoms to condense overhead vapors and to supply reboiling heat to the stripping section.

REFERENCES:
patent: 2277387 (1942-03-01), Carney
patent: 2327643 (1943-08-01), Houghland
patent: 3606761 (1971-09-01), Muenger et al.
patent: 3783126 (1974-01-01), Hayward et al.
patent: 4137129 (1979-01-01), Bjorklund
Oil & Gas Jrnl; 01 Sep. 75 Edition; pp. 85-88.

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