Process for making a lube base stock from a lower molecular weight feedstock using at least two oligomerization zones
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United States of America Patent
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Feb 3, 2004
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N/A
app pub date -
Jan 11, 2001
filing date -
Dec 22, 1999
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Abstract
A process for making a lube base stock wherein an olefinic feedstock is separated into a light olefin fraction and a medium olefin fraction. The light olefin fraction is contacted with a first oligomerization catalyst in a first oligomerization zone to produce a first product. Both the medium olefin fraction and the first product are contacted with a second oligomerization catalyst in a second oligomerization zone to produce a second product. The second product is separated into a light byproduct fraction and a heavy product fraction that includes hydrocarbons in the lube base stock range.
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