Selective desulfurization of naphtha using reaction inhibitors
US8329029B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Sep 9, 2010 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Jul 30, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A reaction inhibitor can be used to reduce catalyst activity at the beginning of a naphtha selective hydrodesulfurization process. The use of the reaction inhibitor can allow greater flexibility in selecting the reaction conditions to accommodate both the start and end of the hydrodesulfurization process. The reaction inhibitor can be removed during the hydrodesulfurization process, possibly in conjunction with modification of the reaction temperature, in order to maintain a substantially constant amount of sulfur in the naphtha product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.