Continuous recovery of sulfur oxide from flue gas
US4710364A · kind A · utility
5Cited by
7References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1986 |
| Grant date | Dec 1, 1987 |
| Priority date | — |
| Expiry date | Sep 10, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC05B1/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for removing sulfur dioxide from flue gas is disclosed. After passing through a precipitator to remove particulate material, the flue gas is conducted continuously through a fixed bed solid-gas contacting device containing activated carbon or natural zeolite. The bed is regenerated continuously, thereby producing sulfuric acid which may be mixed with ground phosphate rock to produce normal superphosphate, or other by-products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.