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AssigneeSaudi Arabian Oil Company
InventorOmer Refa Koseoglu
Estimating the term…
Hydrocracked bottoms fractions are treated to separate HPNA compounds and/or HPNA precursor compounds and produce a reduced-HPNA hydrocracked bottoms fraction effective for recycle, in a configuration of a single-stage hydrocracking reactor, series-flow once through hydrocracking operation, or two-stage hydrocracking operation. A process for separation of HPNA and/or HPNA precursor compounds from a hydrocracked bottoms fraction of a hydroprocessing reaction effluent comprises contacting the hydrocracked bottoms fraction with an effective quantity of a oxidizing agent to produce corresponding oxidized HPNA compounds and/or oxidized HPNA precursor compounds, and to form an oxidized hydrocracked bottoms fraction. The oxidized hydrocracked bottoms fraction is separated into an HPNA-reduced hydrocracked bottoms portion and an oxidized HPNA portion. All or a portion of the HPNA-reduced hydrocracked bottoms portion is recycled within the hydrocracking operation.
A process for separation of heavy poly nuclear aromatic (HPNA) compounds and/or HPNA precursor compounds from a hydrocracked bottoms fraction prior to recycling within a hydrocracking operation, the process comprising:
24-26. (canceled)
A two stage hydrocracking process comprising:
34-56. (canceled)
A process for separation of heavy poly nuclear aromatic (HPNA) compounds and/or HPNA precursor compounds from a hydrocracked bottoms fraction comprising:
(canceled)
A process for separation of heavy poly nuclear aromatic (HPNA) compounds and/or HPNA precursor compounds from a hydrocracked bottoms fraction comprising:
62-64. (canceled)
Dependencies are inferred from the claim text.