| 摘要 |
A fuel gas is passed into one set of channels in a compact reactor ( 12 ) consisting of a plurality of metal sheets ( 41 ) arranged to define first and second gas flow channels ( 14 and 15 ), the channels being arranged alternately to ensure good thermal contact between the gases in them and each channel containing a removable metallic heat conducting insert ( 44 ) coated with a ceramic. In the set of channels carrying the fuel the ceramic supports particles of a transition metal oxide, which is reduced by the combustion gas to form metal particles. In the other set of channels the ceramic supports particles of a transition metal, and these channels carry a flow of an oxidizing gas, which oxidises the metal. The flows to the two sets of channels are then exchanged. If the oxidizing gas is steam, the result is a stream of pure hydrogen.
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