Liquid phase catalytic hydrocarbon hydroconversion with polyaromatic additive
US5460714A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Mar 25, 1993 |
| Grant date | Oct 24, 1995 |
| Priority date | — |
| Expiry date | Mar 25, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G47/34
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention involves the liquid phase hydroconversion of hydrocarbon charges containing heavy fractions, and more particularly their deep conversion, in which the charge is contacted with a dispersed catalyst in the presence of a polyaromatic additive. The catalyst is a sulfide of a hydrogenating metal (such as molybdenum, nickel or cobalt) generated in situ from a precursor. The additive has at least three aromatic cycles, has a boiling point exceeding 300.degree. C., and is added at a rate of 5 to 60% by weight based on the charge. Synergism between the catalyst and the additive makes it possible to reduce the catalyst quantity and/or improve the conversion and quality of the products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.