The H 2S splitting cycle provides a technical route for the reutilization of the sulfur-containing pollutants in coal to produce high-quality and high-value hydrogen and sulfuric acid. As the critical step of this cycle, Bunsen reaction faces great challenges on the separation and purification of the products, the side reactions, the deposition of iodine vapor, and corrosion. The direct electrolysis of the Bunsen reaction products can avoid the separation of the products and reduce the excessive use of reactants. A preliminary investigation of the continuous electrolysis of the Bunsen reaction products, HI/H 2SO 4 mixed solution, was conducted in this paper. Evolutions of the electrolytic results as a function of time were analyzed and the effects of the presence of toluene in the anolyte on the electrolysis results were also studied. The continuous electrolysis reached the steady state after 3 hours. The cell voltage dramatically increased after 1 hour and then stabilized at 3.33 V. I^- concentration in the anolyte could be reduced by 49% after 6 hour electrolysis. I^- in the anolyte may cross the proton exchange membrane to contaminate the catholyte. The presence of toluene is beneficial to reducing the residual I^- concentration in the anolyte, inhibiting the I^- contamination of the catholyte and reducing the energy consumption of the electrolysis.