Process for upgrading a sulfur-containing feedstock
US5171425A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 1991 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | May 24, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G35/095
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Process for upgrading a sulfur-containing feedstock comprising a hydrocarbon mixture substantially boiling in the gasoline range which process comprises the following steps: PA1 1) contacting the feedstock of a temparature of about 300.degree. C. to about 600.degree. C., a pressure of about 1 bar to about 40 bar and a space velocity of about 0.5 to about 10 g/g/h, with a catalyst which comprises a crystalline (metallo)silicate having an X-ray diffraction pattern containing the four strongest lines at interplanar spacings (d) expressed in .ANG., of 11.1.+-.0.2, 10.0.+-.0.2, 3.84.+-.0.07 and 3.72.+-.0.06, and PA1 2) contacting at least a fraction of the product obtained in step 1) at a temperature of about 200.degree. C. to about 600.degree. C., a pressure of about 20 bar to about 100 bar and a space velocity of about 0.5 to about 20 g/g/h, with a catalyst which comprises a crystalline (metallo)silicate having a similar X-ray diffraction pattern as defined hereinabove, and recovering therefrom a product substantially boiling in the gasoline range, said product having an improved octane quality and decreased sulfur content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.