Hydrocracking high residual contained in vacuum gas oil
US5009768A · kind A · utility
52Cited by
14References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1989 |
| Grant date | Apr 23, 1991 |
| Priority date | — |
| Expiry date | Dec 19, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G65/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a hydrocatalytic process for treating vacuum gas oils, residual feedstocks or mixtures thereof in the presence of up to 100 ppm of V and Ni at moderate hydrogen partial pressures. The process consists of two or more stages: (a) demetallization of feedstock to levels below 10 ppm of V and Ni, and (b) hydrodenitrogenation and hydroconversion of catalysts using a combined bed, and catalytic cracking of the 370.degree. C..+-. fraction to obtain gasolines. This process applies also to vacuum gas oils obtained from other processes, such as FCC, Flexicoque, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.