Removal of impurities from liquid hydrocarbon streams
US7128829B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2003 |
| Grant date | Oct 31, 2006 |
| Priority date | — |
| Expiry date | Oct 10, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G29/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A novel process effective for the removal of organic sulfur compounds, organic nitrogen compounds and light olefins from liquid hydrocarbons is disclosed. The process more specifically addresses the removal of these contaminants from aromatic compounds including benzene and toluene and from naphtha. The liquid hydrocarbons are contacted with a blend of at least one metal oxide and an acidic zeolite. Preferably, the metal oxide comprises nickel oxide and molybdenum oxide and the acidic zeolite is acidic stabilized zeolite Y. This blend has a significant capacity for adsorption of impurities and can be regenerated by oxidative treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.