Low pressure separation for light hydrocarbon recovery

Details Low pressure separation for light hydrocarbon recovery Low pressure separation for light hydrocarbon recovery

1982-10-15

1984-03-13

Sever, Frank

Refrigeration

Processes

Circulating external gas

62 31, 62 33, 62 34, F25J 302

Patent

active

044365403

ABSTRACT:
Net horsepower required for recovering high purity ethylene is reduced by process gas compression of furnace effluent to only low pressures before entering recovery facilities. The compressor discharge undergoes chilling in heat exchangers or pumparound towers designed for small pressure drops. Hydrocarbons condensed during chilling are pumped to higher pressures for fractionation.

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patent: 2938934 (1960-05-01), Williams
patent: 3641190 (1972-02-01), Kivlen et al.
patent: 3729944 (1973-05-01), Kelley et al.
patent: 3947146 (1976-03-01), Schuster
Pratt and Foskett, Trans. Amer. Inst. Chem. Engrs., 42, 149 (1946).
J. R. Fair et al., Chem. Eng. Prog., 54, (No. 12), 39-47, Dec. 1953.
W. K. Lam et al., Oil & Gas Jl. 111, May 18, 1970.

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