Process for hydrodesulfurization of diesel gas oil
US6251262A · kind A · utility
25Cited by
15References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 19, 1999 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Aug 19, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Diesel gas oil feedstock with 1-3 wt % sulfur can be hydrodesulfurized to a diesel gas oil with 0.05 wt % or less sulfur and a Saybolt color of +20 or higher, by defining a hydrogenation region in a fixed bed reactor with a first hydrogenation zone for dibenzothiophene, 1-, 2- and 3-methyldibenzothiophenes, a second hydrogenation zone for 4-methyldibenzothiophene and 4,6-dimethyldibenzothiophene and a third hydrogenation zone for thiols, sulfides and other sulfur-containing substances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.