Experimental study of chemical iodine generation for COIL

The experiments and analysis about thermodynamics and kinetics have been conducted to improve the stability of chemical iodine generator for COIL. The change of conversion rate and reaction velocity with reaction temperature and time was researched. The results show that the ash layer diffuseness of the solid production is the control procedure of reaction and the suitable temperature is about 410 K. They also indicate CuI should be excessive in experiments, and the iodine flow rate should be controlled by chlorine flow rate. The change of iodine flow rate is less than 15% in nearly 15 s after optimizing the generator structure and experimental condition. And the CuI conversion rate is 23%.