Process for converting olefins to distillate fuels with regeneration
AssigneeUop LLC
InventorsManuela Serban, Deng-Yang Jan, Ashish Mathur, Joseph A. Montalbano, Christopher Procopi, Erick J. Bennett, III, Jeannie Mee Blommel
Life of this patent
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Abstract
A process for oligomerizing and oligomerizing olefins to distillate fuels which regenerates a first stage oligomerization catalyst bed and/or a second oligomerization catalyst bed in situ by contact with an oxygen gas at elevated temperature. The oligomerization catalyst can be restored to full activity. A regeneration process can enable continuous operation.
Claims20
A process for oligomerizing an olefin stream comprising:
- oligomerizing a charge olefin stream over a first, first stage oligomerization catalyst bed to produce a first oligomerized olefin stream;
- regenerating said first, first stage oligomerization catalyst bed;
- oligomerizing said charge olefin stream over a second, first stage oligomerization catalyst bed to produce a second oligomerized olefin stream;
- oligomerizing said charge olefin stream over said first, first stage oligomerization catalyst bed to produce said first oligomerized olefin stream.
A process for oligomerizing an olefin stream comprising:
- oligomerizing a charge olefin stream over a first, first stage oligomerization catalyst bed to produce a first oligomerized olefin stream;
- oligomerizing said first oligomerized olefin stream over a first, second stage oligomerization catalyst bed to produce a first oligomerate stream;
- regenerating said first, second stage oligomerization catalyst bed;
- and
- oligomerizing said first oligomerized olefin stream over a second, second stage oligomerization catalyst bed to produce a second oligomerate stream.
A process for oligomerizing an olefin stream comprising:
- oligomerizing a charge olefin stream over a first, first stage oligomerization catalyst bed to produce a first oligomerized olefin stream;
- regenerating said first, first stage oligomerization catalyst bed;
- oligomerizing said charge olefin stream over a second, first stage oligomerization catalyst bed to produce a second oligomerized olefin stream;
- oligomerizing said first oligomerized olefin stream or said second oligomerized olefin stream over a first, second stage oligomerization catalyst bed to produce a first oligomerate stream;
- regenerating said first, second stage oligomerization catalyst bed;
- oligomerizing said first oligomerized olefin stream or said second oligomerized olefin stream over a second, second stage oligomerization catalyst bed to produce a second oligomerate stream.
Dependencies are inferred from the claim text.