Selenium removal process
US7964093B2 · kind B2 · utility
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2References
20Claims
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Assignee
Inventors
Key dates
| Filing date | Feb 18, 2010 |
| Grant date | Jun 21, 2011 |
| Priority date | — |
| Expiry date | Feb 18, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/365
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods and apparatus relate to treating fluid to at least reduce selenium content within the fluid, which may be an aqueous liquid and form a feed stream. The treating removes selenium that may be present in compounds, such as selenocyanate, from the feed stream based on adsorption from contact of the fluid with a sorbent. Flowing a gaseous hydrogen sulfide and sulfur dioxide containing stream over a support, such as activated carbon, may provide the sorbent impregnated with sulfur and utilized in the treating of the fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.