Integrated staged catalytic cracking and hydroprocessing process
US5770043A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1996 |
| Grant date | Jun 23, 1998 |
| Priority date | — |
| Expiry date | Aug 23, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G69/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a catalytic cracking process which includes more than one catalytic cracking reaction step. The process integrates a hydroprocessing process step between the catalytic cracking reaction steps in order to maximize olefins production, mid-distillate quality and naphtha octane level in the cracked products. Preferably, a first cracked hydrocarbon product is obtained from a first cracking stage and separated into a mid-distillate and gas oil containing fraction having an initial boiling point of at least 300.degree. F., the distillate and gas oil containing fraction is hydroprocessed, and a naphtha fraction and a gas oil containing bottoms fraction of the hydroprocessed material are cracked in a second cracking stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.