An Electrochemical Claus Process for Sulfur Recovery

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Abstract
Electrochemical oxidation of to give sulfur and water was achieved at 900°C using fuel cells possessing the general configurationwhere anode electrocatalysts experimentally investigated for promoting the subject oxidation reaction included and the thiospinels , , , , and . The predominant oxidizable electroactive species present in the fuel cell anode compartment was suggested to be hydrogen originating from the initial thermal dissociation of at fuel cell operating temperatures. Rapid anode kinetics were found for the anodic reaction with the empirical trend for exchange currents per geometric area being found to be: .

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