AN IMPROVED PROCESS FOR H2SO4 DECOMPOSITION STEP OF THE SULFUR IODINECYCLE

This study presents a new design, and thermodynamic and engineering an alyses of the H2SO4 decomposition section (Section II of the GA sulfur -iodine process flow sheet) of the thermochemical hydrogen producing c ycle. Thermodynamic (energy and exergy) and cost analyses have been ca rried out using thermodynamic data and costs in the literature. The re sults show that energetic and exergetic efficiencies are 76.0 and 75.6 %, respectively, and the typical cost is 2.2$ (1990) per kmol SO2 for 4$ (1990)/GJ nuclear heat cost.