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FeO controls the sintering of iron-based oxygen carriers in chemical looping CO2 conversion

Jiawei Hu (UGent) , Hilde Poelman (UGent) , Guy Marin (UGent) , Christophe Detavernier (UGent) , Sibudjing Kawi and Vladimir Galvita (UGent)
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Abstract
Enhancement of sintering resistance is key to the application of iron-based oxygen carriers in chemical looping CO2 conversion processes. This drives research to seek the origin of iron oxide sintering during redox cycling. Herein, we explored it by using a Fe2O3 material on a stable ZrO2 support, based on a thermodynamic analysis and time-resolved in-situ X-ray diffraction characterization. Sintering of iron oxide particles originates from the formation of FeO as intermediate during reduction. A prolonged FeO presence leads to more severe sintering. Although quite counter-intuitive, increasing the reaction temperature can mitigate sintering as it shortens the transition time between FeO and Fe phases. These findings provide important insight for the rational design of iron-based oxygen carriers, as well as for the optimization of operating conditions to resist sintering in chemical looping processes.
Keywords
CO2 utilization, FeO intermediate, Iron oxide, Redox cycling, Sintering resistance, CARBON CAPTURE, HYDROGEN-PRODUCTION, STORAGE, GAS, OXIDE, DEACTIVATION, COMBUSTION, REDUCTION, STABILITY, CHEMISTRY

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MLA
Hu, Jiawei, et al. “FeO Controls the Sintering of Iron-Based Oxygen Carriers in Chemical Looping CO2 Conversion.” JOURNAL OF CO2 UTILIZATION, vol. 40, 2020, doi:10.1016/j.jcou.2020.101216.
APA
Hu, J., Poelman, H., Marin, G., Detavernier, C., Kawi, S., & Galvita, V. (2020). FeO controls the sintering of iron-based oxygen carriers in chemical looping CO2 conversion. JOURNAL OF CO2 UTILIZATION, 40. https://doi.org/10.1016/j.jcou.2020.101216
Chicago author-date
Hu, Jiawei, Hilde Poelman, Guy Marin, Christophe Detavernier, Sibudjing Kawi, and Vladimir Galvita. 2020. “FeO Controls the Sintering of Iron-Based Oxygen Carriers in Chemical Looping CO2 Conversion.” JOURNAL OF CO2 UTILIZATION 40. https://doi.org/10.1016/j.jcou.2020.101216.
Chicago author-date (all authors)
Hu, Jiawei, Hilde Poelman, Guy Marin, Christophe Detavernier, Sibudjing Kawi, and Vladimir Galvita. 2020. “FeO Controls the Sintering of Iron-Based Oxygen Carriers in Chemical Looping CO2 Conversion.” JOURNAL OF CO2 UTILIZATION 40. doi:10.1016/j.jcou.2020.101216.
Vancouver
1.
Hu J, Poelman H, Marin G, Detavernier C, Kawi S, Galvita V. FeO controls the sintering of iron-based oxygen carriers in chemical looping CO2 conversion. JOURNAL OF CO2 UTILIZATION. 2020;40.
IEEE
[1]
J. Hu, H. Poelman, G. Marin, C. Detavernier, S. Kawi, and V. Galvita, “FeO controls the sintering of iron-based oxygen carriers in chemical looping CO2 conversion,” JOURNAL OF CO2 UTILIZATION, vol. 40, 2020.
@article{8671630,
  abstract     = {Enhancement of sintering resistance is key to the application of iron-based oxygen carriers in chemical looping CO2 conversion processes. This drives research to seek the origin of iron oxide sintering during redox cycling. Herein, we explored it by using a Fe2O3 material on a stable ZrO2 support, based on a thermodynamic analysis and time-resolved in-situ X-ray diffraction characterization. Sintering of iron oxide particles originates from the formation of FeO as intermediate during reduction. A prolonged FeO presence leads to more severe sintering. Although quite counter-intuitive, increasing the reaction temperature can mitigate sintering as it shortens the transition time between FeO and Fe phases. These findings provide important insight for the rational design of iron-based oxygen carriers, as well as for the optimization of operating conditions to resist sintering in chemical looping processes.},
  articleno    = {101216},
  author       = {Hu, Jiawei and Poelman, Hilde and Marin, Guy and Detavernier, Christophe and Kawi, Sibudjing and Galvita, Vladimir},
  issn         = {2212-9820},
  journal      = {JOURNAL OF CO2 UTILIZATION},
  keywords     = {CO2 utilization,FeO intermediate,Iron oxide,Redox cycling,Sintering resistance,CARBON CAPTURE,HYDROGEN-PRODUCTION,STORAGE,GAS,OXIDE,DEACTIVATION,COMBUSTION,REDUCTION,STABILITY,CHEMISTRY},
  language     = {eng},
  pages        = {6},
  title        = {FeO controls the sintering of iron-based oxygen carriers in chemical looping CO2 conversion},
  url          = {http://dx.doi.org/10.1016/j.jcou.2020.101216},
  volume       = {40},
  year         = {2020},
}

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