Thermochemical water-splitting cycle using iodine and sulfur

Solar Thermal Water Decomposition

“…The three partners each designed one of the steps. The water splitting test apparatus was designed for a hydrogen production rate of 100-200 l h 1 [78]. It was unfortunately not possible to solve some of the issues described in the 1980s for this plant.…”

Activity and stability of Pt catalysts supported on carbon nanotubes, active carbon and γ-Al2O3 for HI decomposition in iodine–sulfur thermochemical cycle

“…In the past decades, studies of IS cycle have been focused mainly on the demonstration of the closed-cycle continuous water splitting. In 2004, Japan Atomic Energy Agency (JAEA) built a glass apparatus with a hydrogen production rate of about 30 L/h and closed-cycle continuous water-splitting was demonstrated for one week [5,6]. In 2008, an integrated lab-scale test facility with the designed hydrogen production rate of about 200 L/h was constructed with industrial materials by the cooperation of GA, Sandia National Laboratory (SNL), and Commissariat à l'Energie Atomique (CEA) [7].…”

Simulation study about the effect of pressure on purification of H2SO4 and HIx phases in the iodine–sulfur hydrogen production cycle

“…Among the many thermochemical cycle hydrogen production methods, the iodine sulfur (IS) cycle, originally proposed by General Atomics, is expected to be a clean, economical, and sustainable method of large-scale hydrogen production using nuclear heat at high temperature [1e4]. However, there still exist some technical problems to be solved before realization of industrial hydrogen production by the IS process [3,4]. One such problem is the purification of Bunsen reaction products comprised of H 2 SO 4 and HIx phases.…”