Abstract
This paper is focused on the experimental research of Fe-based oxygen carriers using coal ash as support material. Influence of coal ash size, foamer content, temperature on reactivity of Fe-based oxygen carrier for CO oxidation were conducted in thermogravimetry analyzer (TGA). Experimental results show that conversion of the oxygen carrier could attain 100% under 750 °C, and samples that made from mean coal ash grain size of 0.06 mm are more active than that of 0.09 mm, which prove tiny coal ash grain size can enhance reactivity of oxygen carriers. Besides, reactivity of oxygen carriers under 850 °C are lower than 750 °C for that relative high temperature would cause sintering of the Fe-based oxygen carriers.
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