Control of the concentration of methylacetylene and propadiene i

Details Control of the concentration of methylacetylene and propadiene i Control of the concentration of methylacetylene and propadiene i

1984-04-18

1985-09-10

Smith, William F.

Refrigeration

Processes

Circulating external gas

62 20, 62 32, 203 3, 203 6, 203 70, 585867, F25J 302, B01D 342

Patent

active

045404224

ABSTRACT:
The concentration buildup of contaminants methylacetylene and propadiene in a propylene/propane fractionation column is prevented by controlling the injection of propane from a source external from the feedstream into the inlet stream to the column in response to the measured propane content of the feedstream downstream of the point of propane injection, the measured methylacetylene content of the bottoms product from the column, or the measured methylacetylene content of a sample from a tray of the column.

REFERENCES:
patent: 2371860 (1945-03-01), Walls et al.
patent: 3229471 (1966-01-01), Palen et al.
patent: 3390535 (1968-07-01), Marshall
patent: 3616267 (1971-10-01), McNeill et al.
patent: 3758400 (1973-09-01), Hampton
patent: 4251674 (1981-02-01), Callejas et al.
patent: 4345105 (1982-08-01), Rogers
patent: 4371718 (1983-02-01), Hutson

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