Process for hydrotreating heavy hydrocarbon oils
US4613425A · kind A · utility
38Cited by
6References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 19, 1984 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Jan 19, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2235/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A two-stage process for hydrotreating asphaltenes and metallic contaminants-containing heavy hydrocarbon oils which comprises a demetallization step using a catalyst composition which is smaller in pore size and less in active metal amount than the conventional demetallization catalysts, and a hydrotreating step using a catalyst composition which is larger in pore size and more in active metal amount than the conventional hydrodesulfurization catalysts or hydrocracking catalysts, said hydrotreating step being located downstream of said demetallization step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.