Naphtha hydrotreating process
US11015129B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2020 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Apr 10, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/70
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A naphtha hydrotreating process containinga first step in the presence of the first catalyst containing a support;a second step in the presence of the second catalyst containing a support and an active phase, which active phase contains a Group 9 or 10 metal and a Group 6 metal;a third step in the presence of the third catalyst containing a support and an active phase, which active phase contains a Group 6 metal;whereinthe content of Group 6 metal of the third catalyst is less than the content of Group 6 metal of the second catalyst;the ratio of the loaded specific surface area of the first catalyst to that of the second catalyst is greater than or equal to 1.20;the ratio of the loaded specific surface area of the third catalyst to that of the second catalyst is greater than 1.07.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.