Acidic gas absorbent, acidic gas removal method and acidic gas removal apparatus
US12194411B2 · kind B2 · utility
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25Claims
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Key dates
| Filing date | Mar 5, 2021 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Sep 8, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The embodiments provide an acidic gas absorbent having low diffusibility, an acidic gas removal method employing the acidic gas absorbent, and also an acidic gas removal apparatus employing the absorbent. The acidic gas absorbent according to the embodiment comprises: a particular tertiary amine compound, such as, an alkyl dialkanol amine or a hydroxyalkyl piperazine; a halogen-free ionic surfactant; and an aqueous solvent. The embodiments provide not only the acidic gas absorbent but also an acidic gas removal method and apparatus employing the acidic gas absorbent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.