Method of removing oxygenate contaminants from an olefin stream

Details Method of removing oxygenate contaminants from an olefin stream Method of removing oxygenate contaminants from an olefin stream

2005-01-04

2005-01-04

Griffin, Walter D. (Department: 1764)

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By plural serial diverse separations

C585S809000, C585S833000, C585S639000, C585S864000

Reexamination Certificate

active

06838587

ABSTRACT:
This invention is directed to a method of removing acetaldehyde, CO2and/or water from an ethylene and/or propylene containing stream. In this invention, acetaldehyde and C4+ olefins are substantially removed from the ethylene and/or propylene containing stream. The stream is then acid gas treated. The ethylene and/or propylene streams which are separated and recovered according to this invention can be further processed, for example, to make polymers such as polyethylene and polypropylene.

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Eng, Curtis N., et al, “Integration of the UOP/HYDRO MTO Process into Ethylene Plants,”10th Ethylene Producers' Conference,1998, pp. 54-85.

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