Catalytic composition comprising a metal sulfide suspended in a liquid containing asphaltenes and hydrovisbreaking process of a hydrocarbon charge
US5024751A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 1989 |
| Grant date | Jun 18, 1991 |
| Priority date | — |
| Expiry date | May 18, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G49/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process of catalytic hydrovisbreaking of a hydrocarbon charge comprising the following stages: PA0 a) Mixing the charge to be treated with a gas containing hydrogen in an amount sufficient for carrying out the hydrovisbreaking reaction, PA0 b) introducing into the hydrogen-hydrocarbon charge mixture an amount of a catalytic composition that is sufficient for obtaining a content of metals in the charge to be treated ranging from about 10 to 2,000 ppm by weight in relation to the weight of the charge, said catalytic composition being obtained with a method comprising the following stages: PA0 1) subjecting to a thermal treatment under the globally reducing atmosphere of a gas containing hydrogen, the mixture obtained by contacting, in any order, at least one compound other than a sulfide of at least one metal with a hydrocarbon charge containing asphaltenes and with at least one organic polysulfide PA0 2) heating the product resulting from statge (b) in the presence of a gas containing hydrogen, and PA0 c) subjecting the product resulting from stage (b) to hydrovisbreaking conditions for a time sufficient for carrying out the hydrovisbreaking of the charge …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.