Corrosion control in and selenium removal from flue gas wet scrubber systems
US8585994B2 · kind B2 · utility
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8References
19Claims
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Key dates
| Filing date | Feb 6, 2012 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Feb 6, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/602
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and composition for the reduction of the emission of selenium into the environment from the burning of fossil fuels with the use of two chemistries, either individually or in combination with each other. The method uses polydithiocarbamic compounds, including polydithiocarbamic compounds derived from a polymer produced from acrylic-x and alkylamine in conjunction with a scrubber process to capture selenium and reduce its emission in aqueous phase blowdown. The method and composition also helps reduce corrosion in the scrubber process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.