Prodn. of hydrogen and oxygen from water - using thermochemical continuous process in which carbon-oxygen cpds. is reacted with oxide as acceptor in presence of water and halogen

摘要

Thermochemical continuous process for dissociation of water into H2 and O2 is carried out in several stages. Method comprises reacting a C-O cpd., e.g. CO, formaldehyde, (m)ethanol, or ethylene (with an oxide as acceptor) in presence of water and iodine to form a corresp. oxide with a higher O fraction and a cpd. such as ethane, converting the cpd., such as ethane, with the evolution of H, to the original cpd. e.g. ethylene, sepg. O from the cpd. recycling the prod. and ethylene to the process, and removing H and O from the process. The oxide used may be Sb, V, As, Bi, Te, U or Se and may be an alkali(ne earth) cpd. of the oxide. The method and choice of components avoid corrosion problems.