Abstract
A combined plasma photolysis (CPP) reactor that utilized the dielectric barrier discharge (DBD) plasma together with DBD-driven KrI* excimer ultraviolet emission was applied to the decomposition of H2S gas. The effects of applied voltage, input current, gas flow velocity, original concentration as well as the ratio of Kr/I2 mixture on H2S removal efficiency were investigated. Gas streams containing H2S were separately treated with single DBD and CPP reactor under the same conditions. In comparison to DBD, CPP could greatly enhance the H2S removal efficiency at the same applied voltage, inlet gas concentration and gas flow velocity. In addition, the reaction mechanism was also discussed in this paper.
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