Process for pyrolysis of a coal feed
US9162955B2 · kind B2 · utility
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15References
19Claims
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Key dates
| Filing date | Aug 26, 2014 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Aug 26, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2531/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for pyrolyzing a coal feed is described. A coal feed is pyrolyzed into a coal tar stream and a coke stream in a pyrolysis zone. The coal tar stream is separated into at least a pitch stream comprising aromatic hydrocarbons. The pitch stream is reacted in a reaction zone to add at least one functional group to an aromatic ring of the aromatic hydrocarbons in the pitch stream. The functionalized pitch stream is recycled to the pyrolysis zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.