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Minimum fluidization velocities of mixtures of biomass and sands

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  • R. Rao, T
  • Ram. Bheemarasetti, J.V

Abstract

The present work reports studies on the fluidization of mixtures of biomass and sands. The biomass materials used are rice husk, sawdust and groundnut shell powder, and the sands employed are of two different densities and particle sizes. Experiments are carried out in a 5 cm ID fluidized bed column to determine the minimum fluidization velocities. The percentage of biomass materials in the mixtures studied are 2, 5, 10 and 15% by weight. Equations are developed for predicting the Umf values of these mixtures. The equations are also tested for their validity against the data in current literature on Umf values of mixtures of biomass and sands and also mixtures of particles of different sizes only. It is found that the proposed equations quite satisfactorily predict the Umf values for mixtures of different particle densities and sizes.

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  • R. Rao, T & Ram. Bheemarasetti, J.V, 2001. "Minimum fluidization velocities of mixtures of biomass and sands," Energy, Elsevier, vol. 26(6), pages 633-644.
    • Handle: RePEc:eee:energy:v:26:y:2001:i:6:p:633-644
    DOI: 10.1016/S0360-5442(01)00014-7
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    Cited by:

    1. Sun, Zhi-Ao & Jin, Bao-Sheng & Zhang, Ming-Yao & Liu, Ren-Ping & Zhang, Yong, 2008. "Experimental study on cotton stalk combustion in a circulating fluidized bed," Applied Energy, Elsevier, vol. 85(11), pages 1027-1040, November.
    2. Shen, Yafei & Zhao, Peitao & Shao, Qinfu & Takahashi, Fumitake & Yoshikawa, Kunio, 2015. "In situ catalytic conversion of tar using rice husk char/ash supported nickel–iron catalysts for biomass pyrolytic gasification combined with the mixing-simulation in fluidized-bed gasifier," Applied Energy, Elsevier, vol. 160(C), pages 808-819.
    3. Sahoo, Abanti & Ram, Deo Karan, 2015. "Gasifier performance and energy analysis for fluidized bed gasification of sugarcane bagasse," Energy, Elsevier, vol. 90(P2), pages 1420-1425.
    4. Guiying Wu & Bangting Yu & Yanjun Guan & Xuehui Wu & Kai Zhang & Yongli Li, 2019. "Mixing Characteristics of Binary Mixture with Biomass in a Gas-Solid Rectangular Fluidized Bed," Energies, MDPI, vol. 12(10), pages 1-8, May.
    5. Arromdee, Porametr & Kuprianov, Vladimir I., 2012. "Combustion of peanut shells in a cone-shaped bubbling fluidized-bed combustor using alumina as the bed material," Applied Energy, Elsevier, vol. 97(C), pages 470-482.
    6. Sun, Z. & Jin, B. & Zhang, M. & Liu, R. & Zhang, Y., 2008. "Experimental studies on cotton stalk combustion in a fluidized bed," Energy, Elsevier, vol. 33(8), pages 1224-1232.

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