Process for removing total reduced sulfur compounds from industrial gases using manganese dioxide
US4552735A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1983 |
| Grant date | Nov 12, 1985 |
| Priority date | — |
| Expiry date | Apr 20, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/485
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process and apparatus for removing total reduced sulfur compounds (TRS), especially H.sub.2 S and mercaptans from industrial gases is disclosed wherein an aqueous suspension of an active manganese dioxide is contacted with the industrial gas by atomizing the aqueous suspension in a spray dryer and contacting the atomized droplets with the industrial gas at a temperature sufficient to substantially completely evaporate the water in the atomized droplets. In preferred practice, the dried powder produced by the spray dry process is recovered as a particle layer in a bag filter unit through which the industrial gas is caused to flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.