Process for hydrotreating heavy oil and hydrotreating apparatus
US5779992A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 15, 1996 |
| Grant date | Jul 14, 1998 |
| Priority date | — |
| Expiry date | Aug 15, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G65/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A hydrotreating apparatus comprising (a') a fixed-bed reactor packed with a hydrotreating catalyst for hydrotreating a heavy oil and (b') a suspended-bed reactor packed with a hydrotreating catalyst for further hydrotreating the heavy oil hydrotreated in the fixed-bed reactor. According to the apparatus of the present invention, (a) feeding of a heavy oil to a fixed-bed reactor is disclosed packed with a hydrotreating catalyst to thereby effect hydrotreating of the heavy oil and (b) feeding of the heavy oil hydrotreated in the fixed-bed reactor to a suspended-bed reactor packed with a hydrotreating catalyst to thereby effect further hydrotreating of the heavy oil can be conducted, and therefore the period of hydrotreating of the heavy oil can be prolonged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.