Upgrading hydrocarbon pyrolysis products
US9777227B2 · kind B2 · utility
8Cited by
21References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2015 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Oct 6, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/4081
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a utility fluid, such as a fluid containing aromatic and non-aromatic ringed molecules, useful as a diluent when hydroprocessing pyrolysis tar, such as steam cracker tar. The specified utility fluid comprises ≧10.0 wt % aromatic and non-aromatic ring compounds and each of the following: (a) ≧1.0 wt % of 1.0 ring class compounds; (b) ≧5.0 wt % of 1.5 ring class compounds; (c) ≧5.0 wt % of 2.0 ring class compounds; and (d) ≦0.1 wt % of 5.0 ring class compounds. The invention also relates to methods for producing such a utility fluid and to processes for hydroprocessing pyrolysis tar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.