PROCESS FOR HYDROTREATING A MIDDLE DISTILLATE IN TWO SUCCESSIVE ZONES COMPRISING AN INTERMEDIATE ZONE FOR STRIPPING EFFLUENT FROM THE FIRST ZONE WITH CONDENSATION OF THE HEAVY PRODUCTS LEAVING OVERHEAD FROM THE STRIPPER
US6623628B1 · kind B1 · utility
8Cited by
11References
20Claims
0Family size
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Key dates
| Filing date | Jun 26, 2000 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Apr 5, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G65/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for hydrotreating a hydrocarbon feed includes passing the feed into a hydrodesulphurization zone along with hydrogen, where a partially desulphurized effluent is sent to a stripping zone in which it is purified by at least one hydrogen-containing gas under conditions in which a gaseous stripping effluent containing hydrogen and hydrogen sulphide is formed along with a liquid effluent containing substantially no hydrogen sulphide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.