Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 60, Issue 1, Pages 140-153Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.0c03896
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Funding
- U.S. Department of Energy
- National Energy Technology Laboratory [1022461]
- Oak Ridge Institute for Science and Education
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In this study, CuFeMnO4 oxygen carrier was characterized using various techniques, and a reaction model was selected to describe the chemical looping combustion reactions. The intrinsic reaction rate parameters obtained can aid in reactor design for scale-up, and the combined model showed the best correlation with experimental data.
In this work, CuFeMnO4 (copper iron manganese oxide) oxygen carrier was characterized using differential scanning calorimetry/thermogravimetric analysis (TGA), in situ X-ray diffraction, and scanning electron microscopy-energy dispersive X-ray spectroscopy (EDS) to gain a clear elucidation of the chemical looping combustion reactions with H-2 which is a component of synthesis gas. A reaction model which best described the experimental TGA reaction data was selected from the analysis. Intrinsic rate of reaction parameters obtained from the study could be used for designing a reactor for scale-up. A model with combined contributions from nucleation and growth model and dimensional phase boundary model was found to exhibit the best correlation with the experimental data. The analysis provided validation of intrinsic reaction rates and other rate parameters.
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