SO.sub.2 control using moving granular beds
US5167931A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 1990 |
| Grant date | Dec 1, 1992 |
| Priority date | — |
| Expiry date | Mar 28, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23J15/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus of scrubbing acid gas from flue gas comprises slats which define a moving bed of scrubbing material which is capable of reacting with the acid gas to form reaction products on particles of the scrubbing material. Flue gas from a boiler or other sources of flue gas is passed through the moving bed of scrubbing material. The scrubbing material is sprayed with water to the saturation point for increasing the rate of reaction between the reaction gas on the scrubbing material. The scrubbing material leaving the bottom of the moving bed is subjected to a separation step which removes the reaction products as fine dust which is disgarded, and returns the now regenerated particles of scrubbing material to the top of the moving bed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.