Kinetics and modeling of hydrogen iodide decomposition for a bench-scale sulfur-iodine cycle

Thereafter, the kinetic model is applied to the modeling of a HI decomposer for the hydrogen production rate of 1 Nm3/h in which hot helium gas is used to provide heat for the decomposition. Effects of heat-exchanger reactor configuration and composition of the feeding solution on the reactor size and the heat consumed are examined using the proposed model. Calculation results show that heat consumed for the co-current configuration is less than that for the counter-current configuration of the reactor. I2 impurity and high water content in the feeding solution also result in an increase of reactor size and the heat required.