Catalytic cracking gasoline upgrading method
US11685868B2 · kind B2 · utility
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30Claims
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Key dates
| Filing date | Dec 26, 2020 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Jul 22, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalytic cracking gasoline upgrading method is provided. First, in the presence of a prehydrogenation catalyst, the full-range FCC gasoline undergoes prehydrogenation in a prehydrogenation reactor to remove diolefins, mercaptans and sulfides, and then the prehydrogenation product undergoes selective hydrodesulfurization in the presence of a hydrodesulfurization-isomerization catalyst, and straight-chain olefins are isomerized into single-branched olefins or single-branched alkanes, thus obtaining a low-olefin, ultralow-sulfur and high-octane clean gasoline product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.