(706b) Evaluation of the Iron-Based Material with Al2O3/ZrO2 Addition As Oxygen Carrier Applied in Chemical Looping Process
AIChE Annual Meeting
2020
2020 Virtual AIChE Annual Meeting
Topical Conference: Next-Gen Manufacturing
Chemical Looping Processes
Friday, November 20, 2020 - 8:15am to 8:30am
The result indicated that all of the specimens formed a layer of Fe2O3 in the surface. Different ionic diffusion rate made this phase separation occurred. Moreover, the reactivity was then decreased. In the case of the addition of ZrO2, an extra oxygen vacancy will produce due to the substitutional reaction between Zr and Fe. Although the specimen which only composited with ZrO2 and Fe2O3 showed the best reactivity, the consuming of Fe2O3 might lead it not suitable to be the material for chemical looping.
Keywords: chemical looping, oxygen carrier, zirconia, microstructure, redox reaction
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