Method for removal of hydrogen sulfide from geothermal steam and condensate
US8771603B2 · kind B2 · utility
51Cited by
2References
11Claims
0Family size
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Key dates
| Filing date | Dec 12, 2012 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Mar 22, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/023
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for scavenging hydrogen sulfide from geothermal steam in a condenser under vacuum. A fine curtain of atomized acrolein-water droplets may be sprayed into geothermal steam condensers in an amount of approximately 2:1 molar ratio of acrolein to H2S based on hydrogen sulfide in the incoming steam from the turbine. The range being approximately 0.1 ppm to 500 ppm of sulfide. The acrolein is allowed to react with the gas phase H2S to form non-volatile aldehyde byproducts which partition into the water phase, are returned to the cooling tower and ultimately removed by normal cooling-tower blow down.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.