| 摘要 |
PCT No. PCT/US79/01089 Sec. 371 Date Dec. 10, 1979 Sec. 102(e) Date Dec. 10, 1979 PCT Filed Dec. 10, 1979.A three stage hydrogen generator (10), comprises a low BTU, carbon monoxide and hydrogen containing gas generation stage, a first reactor stage (12) for exothermically reducing ferric oxide with the low BTU gas and for generating superheated steam and a second reactor stage (14) for endothermically reacting steam and iron to produce substantially pure hydrogen gas. The hydrogen gas together with unreacted steam from the third stage (16) is directed to a condenser (18), preferably an air cooled unit, wherein the steam is condensed and the hydrogen gas recovered. The condensate (20) is cycled back to the second reactor (14) as the feed water for generating superheated steam and the heated cooling air (22) is directed to the first stage (12) for use in the generation of the low BTU gas. At least one, and preferably all, of the stages utilize a rotating fluidized bed. Desirably the condenser (18) is a rotating fluidized bed heat exchanger.
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