Method for thermochemical decomposition of water

Details Method for thermochemical decomposition of water Method for thermochemical decomposition of water

1976-04-06

1977-01-11

Meros, Edward J.

Chemistry of inorganic compounds

Oxygen or compound thereof

423356, 423424, 423648, 423657, C01B 1302, C01B 102

Patent

active

040027295

ABSTRACT:
Water is thermochemically decomposed to produce hydrogen by the following sequence of reactions: KI, NH.sub.3, CO.sub. 2 and water in an organic solvent such as ethyl or propyl alcohol are reacted to produce KHCO 3 and NH.sub.4 I. The KHCO.sub.3 is thermally decomposed to K.sub.2 CO.sub.3, H.sub.2 O and CO.sub.2, while the NH.sub.4 I is reacted with Hg to produce HgI.sub.2, NH.sub.3 and H.sub.2. The K.sub.2 CO.sub.3 obtained by calcining KHCO.sub.3 is then reacted with HgI.sub.2 to produce Hg, KI, CO and O.sub.2. All products of the reaction are recycled except hydrogen and oxygen.

REFERENCES:
patent: 2013977 (1935-09-01), Weiss
patent: 3594124 (1971-07-01), De Beni
patent: 3839550 (1974-10-01), Wentorf
patent: 3929980 (1975-12-01), Abraham et al.
patent: 3969493 (1976-07-01), Fujii et al.
" Hydrogen Sought Via Thermochemical Methods" Chemical and Engineering News, Sept. 3, 1973, pp. 32-33.

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