Method of inhibiting nitrosation of an aqueous amine solution used in a process of removing carbon dioxide from a flue gas
US9675928B2 · kind B2 · utility
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Key dates
| Filing date | Feb 23, 2015 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | May 11, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method is provided for inhibiting nitrosation of an aqueous amine solution used in a process of removing carbon dioxide from a flue gas. That method includes a step of adding an effective amount of an antioxidant to the aqueous amine solution being circulated between an absorber and a stripper of a carbon dioxide capture system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.