Invention Grant
- Patent Title: Process and apparatus for cracking hydrocarbons with recycled catalyst to produce additional distillate
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Application No.: US14642977Application Date: 2015-03-10
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Publication No.: US09783749B2Publication Date: 2017-10-10
- Inventor: Lev Davydov
- Applicant: UOP LLC
- Applicant Address: US IL Des Plaines
- Assignee: UOP LLC
- Current Assignee: UOP LLC
- Current Assignee Address: US IL Des Plaines
- Main IPC: C10G69/04
- IPC: C10G69/04 ; C10G45/02 ; C10G45/44 ; C10G11/18

Abstract:
A process and apparatus is for recycling LCO and/or HCO to an FCC unit to recover additional distillate. Spent catalyst recycle in the FCC unit may be used to improve distillate yield. A hydroprocessing zone may saturate cycle oil aromatics for cracking in an FCC unit. The recycle cracked stream may be recycled to a downstream hydroprocessing zone to avoid a first hydroprocessing zone for hydrotreating feed to the FCC unit. Additional recovery of cycle oil for recycle is obtained by heating slurry oil prior to vacuum separation.
Public/Granted literature
- US20160264888A1 PROCESS AND APPARATUS FOR CRACKING HYDROCARBONS WITH RECYCLED CATALYST TO PRODUCE ADDITIONAL DISTILLATE Public/Granted day:2016-09-15
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