Reactor design for the UT-3 thermochemical hydrogen production process

Abstract The UT-3 thermochemical cycle for hydrogen production previously proposed consists of four reactions given by: (1) CaBr 2 +H 2 O→CaO +2HBr (2) CaO+Br 2 →CaBr 2 + 1 2 O 2 (3) Fe 3 O 4 +8HBr→3FeBr 2 +4H 2 O+Br 2 (4) 3FeBr 2 +4H 2 O→Fe 3 O 4 +6HBr+H 2 . At present, a series of both theoretical and experimental studies aiming at the industrialization of this process have been conducted. In this paper the measurements of the kinetic study for reaction (3) were first described. Based on experimental data and conceptual design of the whole process, then the simulation of the performance for the reactor using a honeycomb-shaped solid reactant was conducted. The result gives information on the reactor design.