Title: Process and apparatus to substantially maintain the composition of a mixed refrigerant in a refrigeration system

Abstract: Liquid mixed refrigerant is flashed in a vapor-liquid separator from which a portion of the liquid is pumped to an evaporator. The liquid refrigerant boils and partially vaporizes in the evaporator, thereby cooling a process stream. Partially vaporized refrigerant is returned to the separator for separation of vapor from liquid. Separator vapor is countercurrently contacted with a further portion of the separator liquid in a packed section in the upper part of the separator to assure that exiting vapor passing to recompression is saturated with the heavier refrigerant component(s).

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Inventors: Politte, Leo L. (Bartlesville, OK, US)
Giroux, Victor A. (Bartlesville, OK, US)

Application Number: 861923
Filing Date: 1977-12-19
Publication_date: 1980-01-15
Assignee: Phillips Petroleum Company (Bartlesville, OK)
Primary Class(es): 62/114 62/115, 62/502, 62/512
Other Classes:
US Patent Ref:

3159008	Dec, 1964	Nebgen	62/512.
3444696	May, 1969	Geddes et al.	62/28.
3474633	Oct, 1969	Bailey	62/512.
3568457	Mar, 1971	Briggs et al.	62/28.
3882689	May, 1975	Rogers	62/115.

Other Refs:
Primary Examiner: King, Lloyd L.
Assistant Examiner:
Attorney: