Process comprising two gasoline hydrodesulfurization stages and intermediate elimination of H2S formed during the first stage
US6972086B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2001 |
| Grant date | Dec 6, 2005 |
| Priority date | — |
| Expiry date | Oct 18, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G67/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for the production of gasoline with a low sulfur content comprising at least three stages: a first stage in which the sulfur-containing compounds present in the gasoline are at least partially transformed into H2S and into saturated sulfur-containing compounds; a second stage whose purpose is to eliminate the H2S from the gasoline produced in the first stage; and a third stage in which the saturated sulfur-containing compounds remaining in the gasoline are transformed into H2S. The process according to the invention optionally also comprises a pretreatment stage whose purpose is to hydrogenate the diolefins of the feedstock before the first stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.