Method of improving the operation of an existing ethylene...

Details Method of improving the operation of an existing ethylene... Method of improving the operation of an existing ethylene...

2007-06-26

2007-06-26

Dentz, Bernard (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C549S523000, C549S534000, C549S538000

Reexamination Certificate

active

10789052

ABSTRACT:
Described is a method of improving the process and operation of an existing system for manufacturing ethylene oxide. The ethylene oxide manufacturing system includes an epoxidation reactor system containing a volume of high activity epoxidation catalyst. The method includes replacing a portion of the volume of high activity epoxidation catalyst with a volume of high selectivity catalyst, and modifying the operation of the process system so as to provide for a feed to the epoxidation reactor system having a reduced carbon dioxide concentration.

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