Process for hydrotreating heavy hydrocarbon feeds with switchable reactors including at least one step of progressive switching
US9359561B2 · kind B2 · utility
17Cited by
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13Claims
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Key dates
| Filing date | Dec 20, 2011 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Mar 5, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/208
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Process for hydrotreating a heavy hydrocarbon fraction using a system of switchable fixed bed guard zones each containing at least one catalyst bed including at least one step during which the flow of feed supplied to the first guard zone brought into contact with the feed is partly displaced to the next guard zone downstream, preferably progressively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.