Methods for recovering ionic liquid fines from a process stream
US9522859B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Dec 11, 2014 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Jul 13, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G31/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods of recovering droplets of ionic liquid catalyst from a process stream are described. The volume fraction of ionic liquid in the hydrocarbon is increased to cause the ionic liquid droplets to coalesce. One method incorporates various combinations of gravity separation zone(s) and fractionation zones. Another method involves using a combination of a flash vessel and a fractionation zone, as well as an optional gravity separation zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.