• Patent Title: Process and apparatus for cracking hydrocarbons with recycled catalyst to produce additional distillate
  • Application No.: US14642977
    Application Date: 2015-03-10
  • Publication No.: US09783749B2
    Publication 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
Process and apparatus for cracking hydrocarbons with recycled catalyst to produce additional distillate
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.
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