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The performance of the Fe2O3/Al2O3 oxygen carrier modified by the alkali metals, Na and K, was studied by thermogravimetric analysis and in a laboratory‐scale fluidized‐bed reactor. Different factors, such as the alkali metal content, the alkali metal type, and the interaction between Na and K, were taken into account. Both Na and K had strong catalytic effects on the conversion of Fe2O3. A high K...
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