Ammonia mediated carbon dioxide (CO2) sequestration methods and systems
US12420232B2 · kind B2 · utility
0Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2024 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Mar 13, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods of sequestering carbon dioxide (CO2) are provided. Aspects of the methods include contacting an aqueous capture ammonia with a gaseous source of CO2 under conditions sufficient to produce an aqueous ammonium carbonate. The aqueous ammonium carbonate is then combined with a cation source under conditions sufficient to produce a solid CO2 sequestering carbonate and an aqueous ammonium salt. The aqueous capture ammonia is then regenerated from the from the aqueous ammonium salt. Also provided are systems configured for carrying out the methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.