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Dimensioning Air Reactor and Fuel Reactor of a Pressurized Chemical Looping Combustor to Be Coupled to a Gas Turbine: Part 1, the Air Reactor

Author

Listed:
  • Pietro Bartocci

    (Instituto de Carboquímica (C.S.I.C.), C. Miguel Luesma Castán 4, 50018 Zaragoza, Spain)

  • Alberto Abad

    (Instituto de Carboquímica (C.S.I.C.), C. Miguel Luesma Castán 4, 50018 Zaragoza, Spain)

  • Aldo Bischi

    (Department of Energy, Systems, Territory and Construction Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy)

  • Lu Wang

    (State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China)

  • Arturo Cabello

    (Instituto de Carboquímica (C.S.I.C.), C. Miguel Luesma Castán 4, 50018 Zaragoza, Spain)

  • Margarita de Las Obras Loscertales

    (Instituto de Carboquímica (C.S.I.C.), C. Miguel Luesma Castán 4, 50018 Zaragoza, Spain)

  • Mauro Zampilli

    (Department of Industrial Engineering, University of Perugia, Via G. Duranti 67, 06125 Perugia, Italy)

  • Haiping Yang

    (State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China)

  • Francesco Fantozzi

    (Department of Industrial Engineering, University of Perugia, Via G. Duranti 67, 06125 Perugia, Italy)

Abstract

This paper provides a simple methodology for the design of the air reactor of a chemical looping combustor to optimize its characteristics when it is employed connected to a turbo expander to produce power. The design process, given a certain objective (e.g., electric power) defines the reactor specifics, namely height and diameter, taking into account the following aspects: solids inventory of the air reactor; gas velocity; air reactor transport disengaging height (TDH); solids concentration profile along the reactor height, dense bed height; freeboard height; pressure drop depending on air reactor injectors design and configuration. The total air reactor height was about 9.5 m, while the diameter was about 1.8 m. The total inventory was about 10,880 kg; while the circulation rate in the air reactor was about 110 kg/s. The operating pressure and temperature were, respectively, 12 bar and 1200 °C. The average velocity of the gases inside the reactor was about 4 m/s. The fluidization regime resulted to be comprised between turbulent and fast fluidization. Further work must be directed into the estimate of the pressure drop of the reactor, which will affect the plant efficiency in a considerable way.

Suggested Citation

  • Pietro Bartocci & Alberto Abad & Aldo Bischi & Lu Wang & Arturo Cabello & Margarita de Las Obras Loscertales & Mauro Zampilli & Haiping Yang & Francesco Fantozzi, 2023. "Dimensioning Air Reactor and Fuel Reactor of a Pressurized Chemical Looping Combustor to Be Coupled to a Gas Turbine: Part 1, the Air Reactor," Energies, MDPI, vol. 16(5), pages 1-20, February.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:5:p:2102-:d:1075959
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    References listed on IDEAS

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    1. Chen, Liangyong & Kong, Liang & Bao, Jinhua & Combs, Megan & Nikolic, Heather S. & Fan, Zhen & Liu, Kunlei, 2017. "Experimental evaluations of solid-fueled pressurized chemical looping combustion – The effects of pressure, solid fuel and iron-based oxygen carriers," Applied Energy, Elsevier, vol. 195(C), pages 1012-1022.
    2. Zhang, Shuai & Xiao, Rui & Zheng, Wenguang, 2014. "Comparative study between fluidized-bed and fixed-bed operation modes in pressurized chemical looping combustion of coal," Applied Energy, Elsevier, vol. 130(C), pages 181-189.
    3. Rana, Shazadi & Sun, Zhenkun & Mehrani, Poupak & Hughes, Robin & Macchi, Arturo, 2019. "Ilmenite oxidation kinetics for pressurized chemical looping combustion of natural gas," Applied Energy, Elsevier, vol. 238(C), pages 747-759.
    4. Lu, Xuao & Rahman, Ryad A. & Lu, Dennis Y. & Ridha, Firas N. & Duchesne, Marc A. & Tan, Yewen & Hughes, Robin W., 2016. "Pressurized chemical looping combustion with CO: Reduction reactivity and oxygen-transport capacity of ilmenite ore," Applied Energy, Elsevier, vol. 184(C), pages 132-139.
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    Cited by:

    1. Wang Lu & Pietro Bartocci & Alberto Abad & Aldo Bischi & Haiping Yang & Arturo Cabello & Margarita de Las Obras Loscertales & Mauro Zampilli & Francesco Fantozzi, 2023. "Dimensioning Air Reactor and Fuel Reactor of a Pressurized CLC Plant to Be Coupled to a Gas Turbine: Part 2, the Fuel Reactor," Energies, MDPI, vol. 16(9), pages 1-16, April.

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