Patent ID: 8506925

Claim:
An iodine-sulfur cycle for nuclear hydrogen production, comprising: a Bunsen reaction process including a liquid-liquid phase separation process; a hydrogen iodide decomposition process; and a sulfuric acid decomposition process, wherein sulfur dioxide, iodine, and water, which are reactants necessarily used to conduct the Bunsen reaction process, mix with excess water and excess iodine and then react with each other at an operating temperature of 330˜350K (57˜77° C.) as represented by the following Reaction Formula 1: (5˜7).I 2 +SO 2 +(13˜15).H 2 O [2HI+4.I 2 +(6˜8).H 2 O]+[H 2 SO 4 +5.H 2 O], <Reaction Formula 1> wherein concentration of hydrogen iodide in the hydrogen iodide solution produced and separated by the Bunsen reaction process conducted as the reaction Formula 1 exceeds a concentration at an azeotropic point; and wherein the cycle further comprising a flashing process of separating hydrogen iodide from the hydrogen iodide solution.