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US 12,753,355 B2Granted
Process for converting olefins to jet fuel with olefin recycle
AssigneeUop LLC
InventorsAshish Mathur, Debanjan Chakrabarti, Jeannie Mee Blommel, Richard K. Hoehn, Joel S. Paustian, Manuela Serban
Life of this patent
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Abstract
A process for oligomerizing olefins to distillate fuels which oligomerizes a recycle olefin stream with a charge olefin stream in a first-stage oligomerization reactor. The first-stage oligomerate is oligomerized in a second-stage oligomerzation reactor to provide a second-stage oligomerate stream. A recycle olefin stream is taken from said second-stage oligomerate stream.
Claims23
A process for oligomerizing an olefin stream comprising:
- oligomerizing a charge olefin stream and a recycle olefin stream over a first-stage oligomerization catalyst to produce a first-stage oligomerized stream;
- oligomerizing said first-stage oligomerized stream over a second-stage oligomerization catalyst to provide a second-stage oligomerized stream;
- taking said recycle olefin stream from said second-stage oligomerized stream, and
- wherein taking said recycle olefin stream comprises deethanizing or depropanizing said second-stage oligomerized stream to provide a light alkane stream and a deethanized or a depropanized stream.
1 more element
A process for oligomerizing an olefin stream comprising:
- oligomerizing a charge olefin stream over a first-stage oligomerization catalyst in a first catalyst bed to produce a first effluent stream;
- oligomerizing said first effluent stream and a recycle olefin stream over a first-stage oligomerization catalyst in a second catalyst bed to produce a first-stage oligomerized stream;
- oligomerizing said first-stage oligomerized stream over a second-stage oligomerization catalyst to provide a second-stage oligomerized stream;
- and
- taking said recycle olefin stream from said second-stage oligomerized stream.
2 more elements
A process for oligomerizing an olefin stream comprising:
- oligomerizing a charge olefin stream over a first-stage oligomerization catalyst to produce a first-stage oligomerized stream;
- oligomerizing said first-stage oligomerized stream over a second-stage oligomerization catalyst to provide a second-stage oligomerized stream;
- and
- depropanizing said second-stage oligomerized stream to provide a light alkane stream and a depropanized stream.
1 more element
Dependencies are inferred from the claim text.