Immobilization of vanadia deposited on catalytic materials during carbo-metallic oil conversion
US4377470A · kind A · utility
28Cited by
17References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1981 |
| Grant date | Mar 22, 1983 |
| Priority date | — |
| Expiry date | Apr 28, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/107
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process is disclosed for catalytic cracking a hydrocarbon oil feed having significant vanadium content to produce lighter products. The catalyst, from the cracking step, coated with coke and vanadium in an oxidation state less than +5, is regenerated in the presence of an oxygen-containing gas at a temperature high enough to burn off a portion of the coke under conditions keeping the vanadium in an oxidation state less than +5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.