Process for fluidized catalytic cracking of disulfide oil to produce ethylene used for metathesis to produce propylene
US11124713B2 · kind B2 · utility
3Cited by
11References
13Claims
0Family size
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Key dates
| Filing date | Apr 17, 2019 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Apr 17, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Relatively low value disulfide oil (DSO) compounds produced as by-products of the mercaptan oxidation (MEROX) processing of refinery hydrocarbon streams, and oxidized disulfide oils (ODSO), are economically converted to value-added light olefins by introducing the DSO and/or ODSO compounds as the feed to a fluidized catalytic cracking (FCC) unit and recovering the light olefins, namely, ethylene and propylene, and in some embodiments a minor amount of butylenes which is then recovered and introduced as the feedstream to a metathesis process for the production and recovery of propylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.