FIELD: chemistry.
SUBSTANCE: invention relates to chemistry and can be used in producing hydrogen. According to the first version, step (1) involves liquid-phase contact between at least one oxidisable organic substance and water in the presence of a mixture which contains at least one conducting catalyst and an aqueous solution of an alkaline electrolyte selected from a group comprising metal hydroxides, metal carbonates, metal bicarbonates and mixtures thereof to obtain a mixture which contains spent electrolyte, CO2 and hydrogen. The spent electrolyte contains a metal carbonate or bicarbonate. Step (2) involves separation of hydrogen formed at step (1) from the mixture formed at step (1). Regeneration step (3) is carried out, involving reaction of spent electrolyte from step (1) with vapour to obtain CO2 and the said alkaline electrolyte for use on step (1). The oxidisable organic substance contains an oxidisable hydrocarbon. According to the second version, the separation step, which essentially involves separation of hydrogen from the mixture formed at step (1) and containing CO2, is carried out by bringing into contact the said hydrogen and CO2 with an aqueous solution of an alkaline electrolyte at temperature between approximately 100°C and 350°C to obtain a composition which contains a metal bicarbonate suitable for regeneration at step (3).
EFFECT: invention simplifies purification of the product.
46 cl, 8 dwg, 2 tbl
