Non-thermal Plasma Assisted Decomposition of H2S into H2 and S

The direct decomposition of hydrogen sulfide into hydrogen and sulfur was studied in a dielectric barrier discharge plasma reactor with an inner electrode made of a stainless steel rod that was later replaced with a modified sintered metal fibers to introduce catalyst inside the plasma zone. The feasibility of DBD plasmolysis for the hydrogen production by H2S decomposition was assessed. Typical results indicate that H2 selectivity is ~100% throughout the range of present study. The influence of several parameters like the discharge gap between the electrodes, residence time of the gas in the discharge zone, the applied voltage and the effect of catalyst have been studied to find the optimal process conditions.