Methods of converting methanol feedstock to olefins

Details Methods of converting methanol feedstock to olefins Methods of converting methanol feedstock to olefins

2011-04-05

2011-04-05

Singh, Prem C (Department: 1771)

Chemistry of hydrocarbon compounds

Plural serial diverse syntheses

With hydrocarbon recycle from later to earlier synthesis

C585S330000, C585S469000, C585S638000, C585S639000, C585S640000, C585S733000

Reexamination Certificate

active

07919660

ABSTRACT:
A method of converting methanol feedstock to olefins is provided and includes contacting the methanol feedstock in a first conversion zone with a catalyst at reaction conditions effective to produce a first reaction zone effluent comprising DME, unreacted methanol and water, and recycling at least a portion of an overhead vapor product to the first conversion zone and/or to the second conversion zone.

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