CEA assessment of the sulphur-iodine cycle for hydrogen production

Abstract

The sulphur-iodine cycle is a promising process for hydrogen production using nuclear heat: • it is a purely thermochemical cycle, implying that hydrogen production will scale with volume rather than surface; • it only involves fluids, thus avoiding the often difficult handling of solids; • its heat requirements are well matched to the temperatures available from a Generation IV very/high temperature reactor.