An electrochemical cell to be used for desulfurization of coal gasification process streams is being tested at lab scale. Syn-gas is passed by the cathode of the cell, run at typical gasifier temperatures, where the H2S is preferentially reduced to hydrogen gas, which enriches the fuel gas, and sulfide ions, which enter the electrolyte-filled membrane. These sulfide ions are oxidized to elemental sulfur vapor at the anode electrode, collected downstream, providing continuous performance.
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