Hydrofining catalyst and hydrofining process
US6858132B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2001 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Jul 26, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J37/0009
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A heavy oil hydrorefining catalyst of the present invention is such that the total volume of pores with a diameter of 60 nm or less is at least 0.5 mL/g, and the pore diameter distribution has a broad band over a pore diameter range of 8 to 30 nm. The hydrorefining catalyst has excellent desulfurization characteristics and excellent demetalization characteristics, and its performance can be maintained over an extended period. When this catalyst is used in a hydrorefining apparatus equipped with a plurality of catalyst layers, the apparatus can be operated stably at a higher temperature than in the past without decreasing the desulfurization performance, and this also enhances the demetalization characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.