Vent recovery system

Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By addition of extraneous agent – e.g. – solvent – etc.

Reexamination Certificate

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Reexamination Certificate

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06914167

ABSTRACT:
A process for absorbing propylene from a gaseous propylene oxide process purge stream wherein propane liquid is used to absorb the propylene.

REFERENCES:
patent: 5214168 (1993-05-01), Zajacek et al.
patent: 5468885 (1995-11-01), Jubin, Jr.

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