FCC catalyst for reducing the sulfur content in gasoline and diesel
US7033487B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2003 |
| Grant date | Apr 25, 2006 |
| Priority date | — |
| Expiry date | Jul 22, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst composition comprising about 5–55 wt % metal-doped anionic clay, about 10–50 wt % zeolite, about 5–40 wt % matrix alumina, about 0–10 wt % silica, about 0–10 wt % of other ingredients, and balance kaolin. In metal-doped anionic clays, the additive, i.e. the metal dopant, is distributed more homogeneously within the anionic clay than in impregnated anionic clays, without separate phases of additive being present. Hence, abrasion of this catalyst composition will result in microfines poorer in additive than the prior art composition. Furthermore, the catalyst composition according to the invention results in a higher reduction of sulfur in fuels such as gasoline and diesel than is the case in compositions comprising impregnated anionic clay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.