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Research Papers

Transient Reacting Flow Simulation of Spouted Fluidized Bed for Coal-Direct Chemical Looping Combustion

[+] Author and Article Information
Subhodeep Banerjee

Department of Mechanical Engineering &
Materials Science,
Washington University in St. Louis,
1 Brookings Drive,
St. Louis, MO 63128
e-mail: sb13@wustl.edu

Ramesh K. Agarwal

Fellow ASME
Department of Mechanical Engineering &
Materials Science,
Washington University in St. Louis,
1 Brookings Drive,
St. Louis, MO 63128
e-mail: rka@wustl.edu

1Corresponding author.

Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received July 20, 2014; final manuscript received February 12, 2015; published online March 24, 2015. Assoc. Editor: Ziad Saghir.

J. Thermal Sci. Eng. Appl 7(2), 021016 (Jun 01, 2015) (9 pages) Paper No: TSEA-14-1167; doi: 10.1115/1.4029951 History: Received July 20, 2014; Revised February 12, 2015; Online March 24, 2015

Coal-direct chemical-looping combustion (CD-CLC) is a next generation combustion technology that shows great promise as a solution for the need of high-efficiency low-cost carbon capture from fossil fueled power plants. To realize this technology on an industrial scale, the development of high-fidelity simulations is a necessary step to develop a thorough understanding of the CLC process. In this paper, simulations for multiphase flow of the CD-CLC process with chemical reactions are performed using ANSYS Fluent computational fluid dynamics (CFD) software. The details of the solid–gas two-phase hydrodynamics in the CLC process are investigated using the Lagrangian particle-tracking approach called the discrete element method (DEM) for the movement and interaction of the solid oxygen carrier particles with the gaseous fuel. The initial CFD/DEM simulation shows excellent agreement with the experimental results obtained in a laboratory scale fuel reactor in cold-flow conditions at Darmstadt University of Technology. Subsequent simulations using 60% Fe2O3 supported on MgAl2O4 reacting with gaseous CH4 demonstrate successful integration of chemical reactions into the CFCD/DEM approach. This work provides a strong foundation for future simulations of CD-CLC systems using solid coal as fuel, which will be crucial for successful deployment of CD-CLC technology from the laboratory scale to pilot and industrial scale projects.

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References

Arrhenius, S., 1896, “On the Influence of Carbonic Acid in the Air Upon the Temperature of the Ground,” Philos. Mag., 41, pp. 237–277. [CrossRef]
Lyngfelt, A., Leckner, B., and Mattisson, T., 2001, “A Fluidized-Bed Combustion Process With Inherent CO2 Separation; Application of Chemical-Looping Combustion,” Chem. Eng. Sci., 56(10), pp. 3101–3113. [CrossRef]
Ishida, M., Zheng, D., and Akehata, T., 1987, “Evaluation of a Chemical-Looping-Combustion Power-Generation System by Graphic Exergy Analysis,” Energy, 12(2), pp. 147–154. [CrossRef]
Ishida, M., Jin, H., and Okamoto, T., 1996, “A Fundamental Study of a New Kind of Medium Material for Chemical-Looping Combustion,” Energy Fuels, 10(4), pp. 958–963. [CrossRef]
Wolf, J., Anheden, M., and Yan, J., 2001, “Performance Analysis of Combined Cycles With Chemical Looping Combustion for CO2 Capture,” Proceedings of 18th International Pittsburgh Coal Conference, Pittsburgh, PA.
Marion, J. L., 2006, “Technology Options for Controlling CO2 Emissions From Fossil Fueled Power Plants,” Proceedings of 5th Annual Conference on Carbon Capture and Sequestration, Alexandria, VA.
Andrus, H. E., Burns, G., Chiu, J. H., Liljedahl, G. N., Stromberg, P. T., and Thibeault, P. R., 2008, “Hybrid Combustion-Gasification Chemical Looping Coal Power Technology Development Phase III-Final Report,” National Energy Technology Laboratory, Albany, OR, Report No. PPL-08-CT-25.
Mahalatkar, K., Kuhlman, J., Huckaby, E. D., and O’Brien, T., 2011, “Computational Fluid Dynamic Simulations of Chemical Looping Fuel Reactors Utilizing Gaseous Fuels,” Chem. Eng. Sci., 66(3), pp. 469–479. [CrossRef]
Leion, H., Mattisson, T., and Lyngfelt, A., 2007, “The Use of Petroleum Coke as Fuel in Chemical-Looping Combustion,” Fuel, 86(12–13), pp. 1947–1958. [CrossRef]
Cao, Y., and Pan, W., 2006, “Investigation of Chemical Looping Combustion by Solid Fuels. 1. Process Analysis,” Energy Fuels, 20, pp. 1836–1844. [CrossRef]
Mattisson, T., Lyngfelt, A., and Leion, H., 2009, “Chemical-Looping With Oxygen Uncoupling for Combustion of Solid Fuels,” Int. J. Greenhouse Gas Control, 3(1), pp. 11–19. [CrossRef]
Leion, H., Lyngfelt, A., and Mattisson, T., 2009, “Solid Fuels in Chemical-Looping Combustion Using a NiO-Based Oxygen Carrier,” Chem. Eng. Res. Des., 87(11), pp. 1543–1550. [CrossRef]
Rubel, A., Zhang, Y., Liu, K., and Neathery, J., 2011, “Effect of Ash on Oxygen Carriers for the Application of Chemical Looping Combustion to a High Carbon Char,” Oil Gas Sci. Technol.—Rev. IFP Energies Nouv., 66(2), pp. 291–300. [CrossRef]
Shen, L., Wu, J., Gao, Z., and Xiao, J., 2009, “Reactivity Deterioration of NiO/Al2O3 Oxygen Carrier for Chemical Looping Combustion of Coal in a 10kWth Reactor,” Combust. Flame156(7), pp. 1377–1385. [CrossRef]
Kramp, M., Thon, A., and Hartge, E., 2012, “Chemical Looping Combustion of Solid Fuels—Modeling and Validation,” Proceedings of 2nd International Conference on Chemical Looping, Darmstadt, Germany.
Thon, A., Kramp, M., and Hartge, E., 2012, “Operational Experience With a Coupled Fluidized Bed System for Chemical Looping Combustion of Solid Fuels,” Proceedings of 2nd International Conference on Chemical Looping, Darmstadt, Germany.
Alobaid, F., Ströhle, J., and Epple, B., 2013, “Extended CFD/DEM Model for the Simulation of Circulating Fluidized Bed,” Adv. Powder Technol., 24(1), pp. 403–415. [CrossRef]
Zhang, Z., Zhou, L., and Agarwal, R., 2013, “Transient Simulations of Spouted Fluidized Bed for Coal-Direct Chemical Looping Combustion,” Energy Fuels, 28(2), pp. 1548–1560 [CrossRef].
ANSYS, 2012, ANSYS FLUENT User’s Guide, Canonsburg, PA.
ANSYS, 2012, ANSYS FLUENT Theory Guide, Canonsburg, PA.
Link, J. M., 1975, “Development and Validation of a Discrete Particle Model of a Spout-Fluid Bed Granulator,” Ph.D. dissertation, University of Twente, Enschede, The Netherlands.
Syamlal, M., and O’Brien, T. J., 1989, “Computer Simulation of Bubbles in a Fluidized Bed,” AIChE Symp. Ser., 85, pp. 22–31.
Son, S. R., and Kim, S. D., 2006, “Chemical-Looping Combustion With NiO and Fe2O3 in a Thermo-Balance and Circulating Fluidized Bed Reactor With Double Loops,” Ind. Eng. Chem. Res., 45, pp. 2689–2696. [CrossRef]
Gryczka, O., Heinrich, S., Deen, N. G., van Sint Annaland, M., Kuipers, J. A. M., Jacob, M., and Mörl, L., 2009, “Characterization and CFD-Modeling of the Hydrodynamics of a Prismatic Spouted Bed Apparatus,” Chem. Eng. Sci., 64(14), pp. 3352–3375. [CrossRef]
Geldart, D., 1973, “Types of Gas Fluidization,” Powder Technol., 7(5), pp. 285–292. [CrossRef]
Elghobashi, S. E., 1994, “On Predicting Particle-Laden Turbulent Flows,” Appl. Sci. Res., 52, pp. 309–329. [CrossRef]
Elghobashi, S. E., 2006, An Updated Classification Map of Particle-Laden Turbulent Flows, Proceedings of the IUTAM Symposium on Computational Multiphase Flow, Balachandar, S. and Prosperetti, A., eds., Springer-Verlag, Dordrecht, The Netherlands.
Hossain, M. M., and de Lasa, H. I., 2008, “Chemical-Looping Combustion (CLC) for Inherent CO2 Separations—A Review,” Chem. Eng. Sci., 63, pp. 4433–4451. [CrossRef]
Johansson, M., Mattisson, T., and Lyngfelt, A., 2004, “Investigation of Fe2O3 With MgAl2O4 for Chemical-Looping Combustion,” Ind. Eng. Chem. Res., 43, pp. 6978–6987. [CrossRef]

Figures

Grahic Jump Location
Fig. 1

Reacting particle in the multiple surface reactions model

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Fig. 2

Spouted fluidized bed apparatus at Darmstadt University of Technology (left) and CFD model (right)

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Fig. 3

Comparison of particle distribution in the reactor for the first 300 ms of jet injection between Fluent CFD/DEM simulation (top) and TU-Darmstadt experiment (bottom)

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Fig. 4

Time variation of bed height and pressure at various heights for cold-flow simulation

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Fig. 5

Geometry outline with pressure taps, mesh, and wireframe of the complete CD-CLC configuration

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Fig. 6

Particle tracks colored by velocity magnitude in reacting flow with F60AL1100 particles

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Fig. 7

Static pressure at pressure taps P1–P5 in the CD-CLC system of Fig. 5 at t = 400 ms (upper left), 800 ms (upper right), 1200 ms (lower left), and 1600 ms (lower right) in reacting flow

Grahic Jump Location
Fig. 8

Particle tracks colored by mass fraction of Fe3O4 relative to original mass of Fe2O3

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Fig. 9

Contours of CO2 mass fraction produced by reaction of Fe2O3 with CH4

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