Production of high purity olefins

Details Production of high purity olefins Production of high purity olefins

1997-11-26

2000-09-19

Knode, Marian C.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

From nonhydrocarbon feed

585638, 585639, C07C 102, C07C 120

Patent

active

061215031

ABSTRACT:
A process for converting an oxygenate feed to high purity olefins such as polymer-grade propylene (C.sub.3.sup.0 /C.sub.3.sup.= .ltoreq.0.05) at a temperature of about 450.degree. C. (842.degree. F.), using a molecular sieve catalyst having a high preselected Si/Al.sub.2 ratio (such as ZSM-5, ZSM-48) or a preselected Si/Fe.sub.2 ratio (such as FeZSM-5), or SAPO-34.

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