Polyamines, synthesis method thereof and use thereof for the selective elimination of H2S from a gaseous effluent comprising CO2
US11136434B2 · kind B2 · utility
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Key dates
| Filing date | May 28, 2018 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Sep 2, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Polyamines of formula (I), their preparation method and their use in an absorbing solution based on amines in order to selectively eliminate H2S from a gaseous effluent containing H2S and CO2, which polyamines are obtained by a reaction between piperazine and an epihalohydrin or a 1,3-dihalo-2-propanol
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.