Process for hydrogenating highly unsaturated heavy hydrocarbon cuts
US4019976A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1975 |
| Grant date | Apr 26, 1977 |
| Priority date | — |
| Expiry date | Apr 21, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G65/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Process for hydrogenating a highly unsaturated hydrocarbon cut, boiling above 200.degree. C under atmospheric pressure, comprising passing said cut successively over two catalysts, each of which contains an alumina carrier, (a) at least one molybdenum and/or tungsten compound and (b) at least one nickel and/or cobalt compound, the ratio b/a expressed in gram-atoms of metals, being from 1.5:1 to 10:1 for the first catalyst and from 0.1:1 to 1:1 for the second catalyst and the alumina carrier of the first catalyst having a heat of neutralization by ammonia absorption lower than 10 calories per gram under an ammonia pressure of 300 mmHg.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.