Process for the hydrogenation of aromatic hydrocarbons
US4610779A · kind A · utility
12Cited by
16References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1984 |
| Grant date | Sep 9, 1986 |
| Priority date | — |
| Expiry date | Oct 5, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G65/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for the hydrogenation of aromatic hydrocarbons contained in hydrocarbonaceous oil feed comprising at least about 15 wppm organic nitrogen compounds is provided in which the feed is contacted with hydrogen in a substantially sulfur-free environment in the presence of a catalyst comprising a Group VIII noble metal component, such as palladium, a Y-type crystalline aluminosilicate zeolite and a support such as alumina. When the hydrogenation activity of the catalyst decreases, the partially deactivated catalyst is stripped with hydrogen periodically to increase the hydrogenation activity of the catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.