Oligomerization process
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United States of America Patent
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Oct 7, 2014
Grant Date -
Jun 3, 2010
app pub date -
Dec 2, 2008
filing date -
Dec 2, 2008
priority date (Note) -
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Abstract
A process for oligomerizing isoolefins, the process including: feeding an isoolefin to an oligomerization reaction zone; feeding an oxygen-containing reaction moderator to the oligomerization reaction zone; concurrently in the oligomerization reaction zone: contacting the isoolefin with an oligomerization catalyst to convert at least a portion of the isoolefin to oligomers comprising dimers and trimers of the isoolefin; reacting a portion of the moderator with a portion of at least one of the isoolefin and the oligomers to form an oxygenated oligomerization byproduct; recovering an effluent from the oligomerization reaction zone comprising the oligomers and the oxygenated oligomerization byproduct; fractionating at least a portion of the effluent to recover a fraction comprising the oxygenated oligomerization byproduct and the trimers and a fraction comprising the dimers.
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