Multiple-stage hydroprocessing of hydrocarbon oil
US4431526A · kind A · utility
25Cited by
23References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1982 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | Jul 6, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/107
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In the catalytic hydroprocessing of hydrocarbons, a hydrocarbon oil is successively contacted with a first hydroprocessing catalyst in a first reaction zone and a second hydroprocessing catalyst in a second reaction zone. The first catalyst has an average pore diameter at least about 30 angstroms larger than the second catalyst, although both have narrow pore size distributions wherein at least about 90 percent of the total pore volume is in pores of diameter from about 100 angstroms to about 300 angstroms, and with essentially all the pores having diameters greater than 100 angstroms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.