Process for regenerating a liquid absorbent
US11607642B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Nov 20, 2019 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | Dec 1, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention provides a process for regenerating a liquid absorbent, including: contacting the liquid absorbent with a hydrophobic medium, wherein the liquid absorbent includes at least one amine of Formula (I) and degradation product thereof including at least one imine of Formula (II), wherein each Ar is independently an aromatic group and each R is independently selected from hydrogen, an organyl group and NH2; and selectively extracting the degradation product into or through the hydrophobic medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.