Process for purification of an aqueous phase containing polyaromatics
US9227854B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2008 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Oct 26, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/38
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is a process for purifying a liquid stream having an aqueous phase with polyaromatics, and optionally an organic phase. The process can include sending the liquid stream to a mixing tank and introducing an aromatic component to produce a mixture of an organic phase and of an aqueous phase. The mixture can be sent to a decanter to recover a clean aqueous phase and an organic phase. The clean aqueous phase can go through a stripper to remove a substantial part of any remaining organic component. The liquid stream can be the whole or a fraction of an aqueous phase recovered by condensation of an effluent gas leaving an ethylbenzene dehydrogenation reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.