System and method for desulfurizing and decarbonizing flue gas
US12410913B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2022 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Dec 8, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for desulfurizing and decarbonizing a flue gas includes: feeding a boiler flue gas after denitrating and dedusting to a water cooler; cooling the boiler flue gas in the water cooler to a temperature near room temperature, and discharging condensed water; feeding a wet flue gas to a washing tower; washing and cooling the wet flue gas with a washing liquid to separate H2O, SO2 and CO2 in a solid form from the flue gas; feeding a solid-liquid mixed slurry from a bottom of the washing tower to a solid-liquid separator to separate solid H2O, SO2 and CO2 from the washing liquid; feeding the solid H2O, SO2 and CO2 to a rectification separation column; separating CO2 from SO2 and H2O by a reboiler at a bottom of the rectification separation column; and discharging CO2, SO2 and H2O.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.