Process for purification of vent streams
US10329399B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Nov 9, 2015 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Nov 23, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/151
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed herein is a system for recovering olefins from a vent stream comprising an absorber; and a stripper; where the absorber and the stripper are in a recycle loop; and where the absorber is operative to treat a vent stream with a solvent to remove more than 99 wt % of a halogenated by-product contained in the vent stream and to recover 90 to 95 wt % of olefin molecules present in the vent stream; and where the stripper is operative to remove more than 99 wt % of the halogenated by-products present in the solvent; and where the solvent is recycled to the absorber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.