Process for the simultaneous removal of sulfur and mercury
US7060233B1 · kind B1 · utility
41Cited by
72References
53Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2003 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Nov 19, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/602
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for removing hydrogen sulfide, other sulfur-containing compounds and/or sulfur and mercury from a gas stream contaminated with mercury, hydrogen sulfide or both. The method comprises the step of selective oxidation of hydrogen sulfide (H2S) in a gas stream containing one or more oxidizable components other than H2S to generate elemental sulfur (S) or a mixture of sulfur and sulfur dioxide (SO2). The sulfur generated in the gas stream reacts with mercury in the gas stream to generate mercuric sulfide and sulfur and mercuric sulfide are removed from the gas stream by co-condensation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.