Method for reactive desulfurization of crude oil and sulfur rich petroleum refinery fractions
US11802249B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | May 18, 2022 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | May 18, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/1033
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for desulfurizing crude oil and sulfur rich petroleum refinery fractions is disclosed. The method includes feeding the crude oil and sulfur rich petroleum refinery fractions to a reactor. An oxidation catalyst is added to the crude oil and sulfur rich petroleum refinery fractions. The crude oil and sulfur rich petroleum refinery fractions and the oxidation catalyst are stirred to form co-polymers of sulfur-containing heterocyclic compounds. The co-polymers of sulfur-containing heterocyclic compounds are separated by filtration or by centrifugation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.