Pyrolysis tar conversion
US10072218B2 · kind B2 · utility
6Cited by
4References
25Claims
0Family size
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Key dates
| Filing date | Dec 1, 2017 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Dec 1, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/4018
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process is provided for determining the suitability of pyrolysis tar, such as steam cracker tar, for upgrading using hydroprocessing without long term fouling of the hydroprocessing reactor. The process includes heating a sample of the tar, quenching the sample, and measuring the total free radical content of the quenched sample. A pyrolysis tar can be blended with one having a lesser total free radical content to produce a blend that can be hydroprocessed with decreased fouling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.