(584a) Solar Production of Hydrogen Using a Cadmium Based Thermochemical Cycle
AIChE Annual Meeting
2007
2007 Annual Meeting
Nuclear Energy and the Hydrogen Economy
Developments in Thermochemical and Electrolytic Routes to Hydrogen Production: Part V
Thursday, November 8, 2007 - 12:30pm to 12:50pm
The Molten Cadmium thermochemical cycle consists of two chemical reactions:
Cd(l) + H2O(g) => CdO(s) + H2(g) [350oC]
CdO(s) => Cd(g) + ½O2(g) [1450oC]
The first experimental hurddle has been overcome. Hydrogen has been produced at reasonable rates in a steam-hydrogen mixture at close to the thermodynamically predicted stoichiometry. The products of the high temperature reaction must be quenched to prevent back reaction. Work has begun on determining the required quench rate. Flowsheets have been developed, based on alternative quench strategies, to aid further process development.