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Progress in Scale Modeling, Volume II pp 239–248Cite as

Scale-Up of Chemical Looping Combustion

Abstract

The use of chemical looping combustion (CLC) for power generation is a possible pathway to meet demands for developing clean and efficient fossil fuel-based energy systems. CLC is an advanced technology that captures CO2 inherently and could prove to be an advantageous next electricity generation technology in a carbon-constrained energy scenario. Fluidized bed reactors are used in CLC. The scale-up of laboratory-scale or prototype CLC reactors is necessary to develop an understanding of the potential and efficiencies of CLC because commercial installations would be large, requiring huge amounts of infrastructure, equipment, and investment. In this study, scaling laws were used as a guide to design and then build two different-sized CLC reactors. Testing of the reactors involved a focus on chemical similarities. Comparisons of the performance of both reactors, including the fuel conversion and temperature change, showed good correlations.

Keywords

  • Chemical looping combustion
  • Scaling laws
  • Chemical similarity
  • Conversion
  • Temperature change

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Abbreviations

C :

Concentration

D :

Bed diameter

d p :

Particle diameter

g :

Gravity

H :

Bed height

M :

OC Mass

m :

Scale ratio

Nr :

Dimensionless reaction number

P :

Pressure

Q :

Flow rate

T :

Temperature

t :

Time

u mf :

Minimum fluidization speed

u o :

Superficial velocity

V :

Velocity

X :

Conversion

β :

Drag coefficient

ε :

Volume fraction

ε H :

Voidage

κ v :

Reaction rate

ρ :

Density

σ ij :

Solid-phase stress tensor

τ ij :

Gas-phase stress tensor

φ :

Sphericity

g :

Gas phase

p :

Particle

s :

Solid phase

l :

Big

s :

Small

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Acknowledgments

The authors would like to thank Dr. John Stencel for his useful comments.

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Authors and Affiliations

  1. Center for Applied Energy Research, University of Kentucky, Lexington, KY, 40511, USA

    Fang Liu & Kunlei Liu

  2. Institute of Research for Technology Development, University of Kentucky, Lexington, KY, 40506, USA

    Saito Kozo

Authors
  1. Fang Liu
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  2. Saito Kozo
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  3. Kunlei Liu
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Corresponding author

Correspondence to Kunlei Liu .

Editor information

Editors and Affiliations

  1. Dept. Mechanical Engineering, University of Kentucky, Lexington, Kentucky, USA

    Kozo Saito

  2. Hirosaki University, Hirosaki-shi, Aomori, Japan

    Akihiko Ito

  3. Toyohashi University of Technology, Toyohashi, Japan

    Yuji Nakamura

  4. Yamagata University, Yonezawa-shi, Yamagata, Japan

    Kazunori Kuwana

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Liu, F., Kozo, S., Liu, K. (2015). Scale-Up of Chemical Looping Combustion. In: Saito, K., Ito, A., Nakamura, Y., Kuwana, K. (eds) Progress in Scale Modeling, Volume II. Springer, Cham. https://doi.org/10.1007/978-3-319-10308-2_19

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  • DOI: https://doi.org/10.1007/978-3-319-10308-2_19

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-10307-5

  • Online ISBN: 978-3-319-10308-2

  • eBook Packages: EngineeringEngineering (R0)

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