Upgrading hydrocarbon pyrolysis tar
US10597592B2 · kind B2 · utility
2Cited by
2References
27Claims
0Family size
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Key dates
| Filing date | Aug 2, 2017 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Jan 24, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/308
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process is described for upgrading pyrolysis tar, such as steam cracker tar, by hydroprocessing in the presence of a utility fluid. The hydroprocessing conditions comprise a pressure >8 MPa and a weight hourly space velocity of combined pyrolysis tar and utility fluid >0.3 hr−1 and are selected so that the hydrogen consumption rate is in the range of 270 to 445 standard cubic meters/cubic meter (S m3/m3) of pyrolysis tar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.