Process and apparatus for the exploitation of the sulfur compounds contained in gases containing oxygen and a high water vapor content
US4267162A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 7, 1979 |
| Grant date | May 12, 1981 |
| Priority date | — |
| Expiry date | May 7, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/129
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Sulfur compounds contained in gases containing oxygen and a high content of water vapor are exploited by removing the water vapor content by treating the gases with a glycol and then using the dried gas still containing sulfur compounds, as an oxidation gas for the burning of sulfur or for the roasting of sulfidic ores in the production of highly concentrated sulfuric acid. Apparatus for carrying out the process includes an absorber for absorption by the glycol of the water vapor contained in the gas. The absorber has an exhaust gas conduit connected to a combustion furnace or roasting furnace for the production of sulfur dioxide. A desorber is provided for distilling the water vapor from the glycol and is connected to the absorber by a ring conduit for the glycol enriched with water and for the dewatered glycol. Lastly, apparatus is provided for the heating of the glycol and the desorber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.