Method for removing sulfur oxides from combusting gases in wet, calcium-based flue gas desulfurization processes
US4994246A · kind A · utility
6Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1988 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | Dec 6, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/501
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method is provided for improving the reliability, SO.sub.2 removal and thiosulfate utilization in a wet lime/limestone flue gas desulfurization process by contacting the combustion gases in the presence of the wet lime or limestone with thiosulfate and an organic polyacid chelating agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.