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Measurement and modeling of decomposition kinetics for copper oxide-based chemical looping with oxygen uncoupling

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  • Clayton, Christopher K.
  • Whitty, Kevin J.

Abstract

Chemical looping combustion with oxygen uncoupling (CLOU) is a promising CO2-capture ready energy technology that employs oxygen carriers with thermodynamic properties that cause oxygen to be spontaneously liberated as gaseous O2 in the fuel reactor, where it can react directly with solid fuels. One of the promising CLOU carrier metals is copper, cycling between CuO and Cu2O. Experimentally-determined rate expressions for these reactions are needed for proper development, modeling and scale-up of CLOU technology. The CuO–Cu2O system presents an interesting challenge in that the rate of decomposition depends on the thermodynamic driving force imparted by the difference between equilibrium and actual partial pressures of oxygen, and the equilibrium partial pressure is strongly temperature dependent in the range useful for combustion. This study investigates decomposition of two different copper-based oxygen carriers, from CuO to Cu2O oxidation states, to develop a universal kinetic expression to describe the observed rate of reaction as a function of temperature, conversion and gas environment. The kinetic model developed is compared to results of a third support type (silica) using two different CuOwt% loadings (64wt% CuO and 16wt% CuO) to demonstrate applicability to other support types and copper oxide loadings.

Suggested Citation

  • Clayton, Christopher K. & Whitty, Kevin J., 2014. "Measurement and modeling of decomposition kinetics for copper oxide-based chemical looping with oxygen uncoupling," Applied Energy, Elsevier, vol. 116(C), pages 416-423.
    • Handle: RePEc:eee:appene:v:116:y:2014:i:c:p:416-423
    DOI: 10.1016/j.apenergy.2013.10.032
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    Citations

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    Cited by:

    1. Jussi Saari & Petteri Peltola & Tero Tynjälä & Timo Hyppänen & Juha Kaikko & Esa Vakkilainen, 2020. "High-Efficiency Bioenergy Carbon Capture Integrating Chemical Looping Combustion with Oxygen Uncoupling and a Large Cogeneration Plant," Energies, MDPI, vol. 13(12), pages 1-21, June.
    2. Jussi Saari & Petteri Peltola & Katja Kuparinen & Juha Kaikko & Ekaterina Sermyagina & Esa Vakkilainen, 2023. "Novel BECCS implementation integrating chemical looping combustion with oxygen uncoupling and a kraft pulp mill cogeneration plant," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 28(4), pages 1-26, April.
    3. Ping Wang & Bret Howard & Nicholas Means & Dushyant Shekhawat & David Berry, 2019. "Coal Chemical-Looping with Oxygen Uncoupling (CLOU) Using a Cu-Based Oxygen Carrier Derived from Natural Minerals," Energies, MDPI, vol. 12(8), pages 1-13, April.
    4. Hu, Wenting & Donat, Felix & Scott, S.A. & Dennis, J.S., 2016. "Kinetics of oxygen uncoupling of a copper based oxygen carrier," Applied Energy, Elsevier, vol. 161(C), pages 92-100.
    5. Cao, Yang & He, Boshu & Ding, Guangchao & Su, Liangbin & Duan, Zhipeng, 2017. "Energy and exergy investigation on two improved IGCC power plants with different CO2 capture schemes," Energy, Elsevier, vol. 140(P1), pages 47-57.
    6. Coppola, Antonio & Solimene, Roberto & Bareschino, Piero & Salatino, Piero, 2015. "Mathematical modeling of a two-stage fuel reactor for chemical looping combustion with oxygen uncoupling of solid fuels," Applied Energy, Elsevier, vol. 157(C), pages 449-461.
    7. Birkelbach, Felix & Deutsch, Markus & Werner, Andreas, 2020. "The effect of the reaction equilibrium on the kinetics of gas-solid reactions — A non-parametric modeling study," Renewable Energy, Elsevier, vol. 152(C), pages 300-307.

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