Invention Grant
- Patent Title: Hydrocracking process and system including separation of heavy poly nuclear aromatics from recycle with heteropoly acids
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Application No.: US17713488Application Date: 2022-04-05
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Publication No.: US11542442B1Publication Date: 2023-01-03
- Inventor: Omer Refa Koseoglu , Ali Alzaid
- Applicant: Saudi Arabian Oil Company
- Applicant Address: SA Dhahran
- Assignee: Saudi Arabian Oil Company
- Current Assignee: Saudi Arabian Oil Company
- Current Assignee Address: SA Dhahran
- Agency: Leason Ellis LLP
- Main IPC: C10G25/00
- IPC: C10G25/00 ; C10G25/12 ; C10G67/06 ; B01D3/14 ; B01D15/00

Abstract:
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. 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 heteropoly acid compounds to promote adsorption of HPNAs onto the heteropoly acids and to produce a heteropoly acid treated hydrocracked bottoms fraction, that is recycled within the hydrocracking operation.
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