Separation of gaseous components from a gaseous mixture by physi

Details Separation of gaseous components from a gaseous mixture by physi Separation of gaseous components from a gaseous mixture by physi

1979-12-26

1982-04-13

Adee, John

Gas separation

Means within gas stream for conducting concentrate to collector

55 46, 55 51, 55 73, B01D 5314

Patent

active

043245676

ABSTRACT:
In a process for separating and obtaining as product gases at least two gaseous components from a gaseous mixture containing same by scrubbing with a physical scrubbing liquid exhibiting a higher dissolving power for at least one of the components to be separated than for at least one other of these components, wherein a first scrubbing liquid stream, loaded with all of the components to be separated, and a second scrubbing liquid stream, merely containing proportions of the less soluble component or components, are withdrawn from the scrubbing stage; a gaseous fraction is liberated by expansion of the first scrubbing liquid stream, freed of the more soluble component or components by treatment with the second, likewise expanded scrubbing liquid stream and withdrawn as a first product stream; and the scrubbing liquid streams are finally subjected to a separation of the more soluble components as well as of residual proportions of the less soluble components, thus obtaining a second product gas, the improvement which comprises further expanding the scrubbing liquid streams to obtain a gaseous fraction prior to the separation serving for obtaining the second product gas, recompressing the thus-liberated, gaseous fraction and scrubbing the recompressed gaseous fraction with the second scrubbing liquid stream.

REFERENCES:
patent: 3193986 (1965-07-01), Forster
patent: 3590555 (1971-07-01), Wackernagel
patent: 3640052 (1972-02-01), Konoki et al.
patent: 3659401 (1972-05-01), Giammarco
patent: 3975172 (1976-08-01), Ranke
patent: 4050909 (1977-09-01), Ranke

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