Olefin oligomerization process

Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – By addition of entire unsaturated molecules – e.g.,...

Reexamination Certificate

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C585S514000, C585S527000

Reexamination Certificate

active

07834229

ABSTRACT:
In a process for oligomerizing an olefinic hydrocarbon feedstock comprising at least 65 wt % olefins and/or sulfur-containing molecules, the feedstock is contacted under oligomerization conditions with (a) a first unidimensional 10-ring molecular sieve catalyst and (b) a second multidimensional crystalline molecular sieve catalyst. The first and second catalysts may be contained in separate reactors or as separate beds in a single reactor.

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U.S. Appl. No. 11/596,170 Notice of Allowance dated Mar. 23, 2010.

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