Manufacturing ethylene oxide

Details Manufacturing ethylene oxide Manufacturing ethylene oxide

1995-04-05

1996-05-21

Evans, Joseph E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549534, 549538, C07D30132, C07D30304

Patent

active

055191525

ABSTRACT:
A process of manufacturing ethylene oxide is presented in ethylene and free oxygen are reacted in the presence of methane, carbon dioxide, and argon in a reactor to form an effluent comprising ethylene oxide; the effluent is then withdrawn and ethylene oxide is removed from the effluent to obtain a recycle stream; carbon dioxide and argon are removed from the recycle stream to obtain a treated recycle stream which is supplied to the reactor along with additional reactants and methane, wherein removing argon comprises separating a side stream from the recycle stream, passing the side stream to the feed inlet of a membrane unit, removing an argon-containing stream from the permeate outlet of the membrane unit, removing a retentate stream from the retentate outlet of the membrane unit, adding the retentate stream to the recycle stream, and purging the permeate side of the membrane unit with inert gas.

REFERENCES:
patent: 4879396 (1989-11-01), Ozero
patent: 4904807 (1990-02-01), Ozero
patent: 5233060 (1993-08-01), Pendergast et al.

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