Method for producing propylene from methanol

Details Method for producing propylene from methanol Method for producing propylene from methanol

2006-03-21

2006-03-21

Griffin, Walter D. (Department: 1764)

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

From nonhydrocarbon feed

C585S302000, C585S324000, C585S638000, C585S639000

Reexamination Certificate

active

07015369

ABSTRACT:
A process for producing propylene from methanol, wherein methanol vapor is reacted on a first catalyst to obtain a first vapor mixture containing dimethyl ether (DME), which is reacted on a form-selective zeolite catalyst disposed as bed in at least two series-connected shaft reactors to produce a product mixture containing propylene.

REFERENCES:
patent: 4404414 (1983-09-01), Penick et al.
patent: 5744680 (1998-04-01), Mulvaney et al.
patent: 5817906 (1998-10-01), Marker et al.
patent: 0 44 8000 (1991-09-01), None
patent: 0 882692 (1998-12-01), None

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