Method and apparatus for the purification of waste gas containing gaseous pollutants
US4061477A · kind A · utility
10Cited by
8References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1977 |
| Grant date | Dec 6, 1977 |
| Priority date | — |
| Expiry date | Jan 4, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fluidized-bed process and apparatus involving a vertical column containing a plurality of perforated trays, each tray having a weir disposed on its upper surface to divide that surface into first and second sections, each of which has a plurality of apertures. One section of each tray constitutes 80 to 95% of the total tray surface area. Location of the weir on successive trays alternates from side to side of the column to provide for cross-flow of the fluidized material on the trays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.