Patent ID: 6689927
Filing Date: 2004-02-10
Classification: C07C

Abstract:
A process for oligomerizing isobutene and n-butene to a product comprising a high selectivity to 2,4,4-trimethylpentene, said process comprising:a) passing a feed stream comprising isobutene and n-butene to an oligomerization zone and contacting the feed stream with an oligomerization catalyst at oligomerization conditions; b) passing a saturate stream, comprising paraffins having a carbon number of at least 6 into said oligomerization zone with said feed stream and said catalyst at a weight ratio of said feed stream and said saturate stream to said feed stream of at least 8; and c) recovering an effluent stream including product exhibiting a greater selectivity to 2,4,4-trimethylpentene than an effluent stream from a process with substantially the same conditions but with a smaller weight ratio of said feed stream and saturate stream to said feed stream.