Amidium-based ionic liquids for carbon dioxide absorption
US8282710B2 · kind B2 · utility
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Key dates
| Filing date | Sep 30, 2009 |
| Grant date | Oct 9, 2012 |
| Priority date | — |
| Expiry date | Jul 2, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/151
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a carbon dioxide absorbent, an ionic liquid obtained by reacting amide and an organic acid and a method of using the same. The amidium-based ionic liquid of the present invention has excellent CO2 absorption capability, which is hardly reduced even with repeated use, is easy to synthesize and has low manufacturing cost thus being useful as a CO2 absorbent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.