FIELD: chemistry.
SUBSTANCE: invention can be used in chemical industry and when producing fixed and mobile fuel sources. Iron oxide is reduced by thermolysis while heating with an inert gas to obtain oxygen at temperature higher than 1200°C and pressure higher than 0.1 MPa. Iron is then oxidised with a stream of steam which is heated by the inert gas in a container which is alternately filled with the hot inert gas and the steam. Absorption or membrane separation or electrochemical separation is used to separate hydrogen as an end product from the steam of stream, as well as oxygen from the stream of inert gas. The cycle for oxidising and reducing iron oxide is carried out in parallel switched sections connected via inert gas and steam.
EFFECT: high efficiency of the method.
9 cl, 1 dwg
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