Control of Hydrogen Sulfide Emission from Geothermal Power Plants, Annual Status Report, June 1, 1975 - May 31, 1976

A process for controlling H/sub 2/S emissions at geothermal power plants was evaluated in laboratory scale equipment and by process engineering analysis. The process is based on scrubbing geothermal steam with a metal salt solution to selectively remove and precipitate the contained H/sub 2/S. The metal sulfide is roasted or oxygen/acid leached to regenerate the metal salt, and sulfur is rejected from the system as elemental sulfur or as sulfate. Up to 95 percent removal of H/sub 2/S from simulated geothermal steams was obtained in a 2'' diameter scrubbing column packed with 3 feet of 5/8'' Flexirings by use of a recirculating slurry of copper sulfate/copper sulfide. Information is included on the chemistry, thermodynamics, kinetics and process control aspects of the process, scrubber system design, operation, and corrosion, and design proposals and cost estimates for a H/sub 2/S removal system. (LCL)

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Citation Date 1976-07-01T00:00:00

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Original ID 92AF5529D9194C66B98B63B35860153B
Index Date 2016-03-17T20:51:50
Original Format ISO-USGIN
Original Version 1.2


Name Harvey, W.W. , Brown, F.C. , Turchan, M.J.
Organization EIC Corporation, Newton, Massachusetts (USA)