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The method may be run under substantially isothermal conditions and/or energy supplied to the apparatus may include solar energy, which may be concentrated.
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Description: This application claims the benefit of provisional application No. 61/620,891, entitled METHOD AND APPARATUS FOR GAS-PHASE REDUCTION/OXIDATION PROCESS, and filed Apr. 5, 2012, the contents of which are incorporated herein by reference to the extent such contents do not conflict with the present disclosure. Field of invention: The present invention generally relates to reduction/oxidation (redox) methods and apparatus. More particularly, the invention relates to substantially isothermal redox processes to split gas-phase reactants and to solar thermochemical reactor technology for effecting redox reactions. Background: Various redox processes can be used to split gas-phase reactants. For example, hercynite, ceria, and M-ferrite redox cycles may be used to split water (vapors) and CO2. The hercynite cycle can be used here.