Patent ID: 11873451
Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 13:
14. A method for performing fluid catalytic cracking, comprising:
exposing a feed to a cracking catalyst under fluid catalytic cracking conditions comprising 60 wt % or more conversion relative to 221° C. to form coke and a total effluent,
the feed comprising 25 wt % or more of a vacuum gas oil boiling range fraction,
wherein the vacuum gas oil boiling range fraction comprises 10 wt % or more of aromatics, a naphthenes to aromatics weight ratio of 1.5 or higher, and a sulfur content of 1200 wppm or less,
and wherein the total effluent comprises a naphtha boiling range portion, the naphtha boiling range portion comprising a sulfur content of 30 wppm or less relative to a weight of the naphtha boiling range portion, a ratio of mercaptan sulfur to total sulfur of 0.1 to 0.9, an aromatics content of 10 wt % or more relative to a weight of the naphtha boiling range portion, and a weight ratio of paraffins to aromatics of 1.0 or more.