A COMPUTATIONAL STUDY OF A MULTI-SOLID–LIQUID FLUIDIZED BED INCORPORATING INCLINED CHANNELS

Original scientific paper

Authors

  • NAVEEDUL HASAN SYED Department of Chemical Engineering, University of Engineering and Technology Peshawar, Pakistan
  • NASEER AHMED KHAN Department of Chemical Engineering, University of Engineering and Technology Peshawar, Pakistan
  • IFTIKHAR AHMAD Department of Chemical Engineering, National University of Sciences and Technology Peshawar, Pakistan

DOI:

https://doi.org/10.2298/CICEQ200529041S

Keywords:

density separation, fluidization, multiphase flow, polydisperse suspension, segregation-dispersion model, simulations

Abstract

Simulations were performed under continuous processing conditions using the 2D continuum model to describe the internal state of a multi-solid system, comprising solid particles of different sizes and densities at the same time. The feed consisted of 35 types of solid particle species with five different sizes, 1.70, 1.20, 0.85, 0.60 and 0.35 mm, and seven different densities ranging from 1400 to 2000 kg/m3. The simulations results have been used to plot the con­centration profiles of solid particles along the bed height. The concentration profiles of the solid particles depicted that the fine dense particles, 0.60 mm, having density equal to 1900 kg/m3 and terminal velocity 0.058 m/s moved downwards and discharged into the underflow. However, the low-density coarse particles, 1.20 mm, having density equal to 1400 kg/m3 and terminal velocity 0.068 m/s moved upwards and conveyed to the overflow, hence, show a separation process based on the density difference. Furthermore, simulation results showed that the particle species having densities close to the value of the separation relative density exhibited higher concentrations along the sys­tem height, and the suspension within the system was mainly composed of these species.

References

N. Epstein, Powder Technol. 151 (2005) 2-14

R. Escudie, N. Epstein, J.R. Grace, H.T. Bi, Chem. Eng. Sci. 61 (2006) 1528-1539

K.P. Galvin, J. Zhou, K. Walton, Miner. Eng. 23 (2010) 326-338

G. Nguyentranlam, K.P. Galvin, Miner. Eng. 14 (2001) 1081-1091

K.P. Galvin, E. Doroodchi, A.M. Callen, N. Lambert, S.J. Pratten, Miner. Eng. 15 (2002) 19- 25

A.E. Boycott, Nature 104 (1920) 532

K.P. Galvin, A. Callen, J. Zhou, E. Doroodchi, Miner. Eng. 18 (2005) 19-24

D.M. Hunter, J. Zhou, S.M. Iveson, K.P. Galvin, Mineral Process. Extract. Metall. 125 (2016) 126-131

N.H. Syed, K.P. Galvin, R. Moreno-Atanasio, in Chemeca 2016: Chemical Engineering – Regeneration, Recovery and Reinvention, Engineers Australia, Melbourne, 2016, 570-580

D. Amariei, D. Michaud, G. Paquet, M. Lindsay, Miner. Eng. 62 (2014) 66-73

E. Doroodchi, K.P. Galvin, D.F. Fletcher, Powder Technol. 160 (2005) 20-26

Z. Peng, K.P. Galvin, E. Doroodchi, Powder Technol. 343 (2019) 170-184

T.B. Anderson, R. Jackson, Ind. Eng. Chem. Fundam. 6 (1967) 527-539

R.K. Reddy, J.B. Joshi, Chem. Eng. Sci. 64 (2009) 3641-3658

H. Abbasfard, G.M. Evans, M.S. Khan, R. Moreno-Atanasio, Chem. Eng. Sci. 180 (2018) 79-94

S.C. Kennedy, R.H. Bretton, AIChE J. 12 (1966) 24-30

M. Asif, Chem. Eng. Technol. 20 (1997) 485-490

M. Asif, J.N. Petersen, AIChE J. 39 (1993) 1465-1471

W.F. Ramirez, K.P. Galvin, AIChE J. 51 (2005) 2103-2108

M. Asif, J.N. Petersen, E.N. Kaufman, J.M. Cosgrove, T.C, Scott, Ind. Eng. Chem. Res. 33 (1994) 2151-2156

B.K. Patel, W.F. Ramirez, K.P. Galvin, Chem. Eng. Sci. 63 (2008) 1415-1427

Z. Peng, J.B. Joshi, B. Moghtaderi, M.S. Khan, G.M. Evans, E. Doroodchi, Chem. Eng. Sci. 152 (2016) 65-83

N.H. Syed, J.E. Dickinson, K.P. Galvin, R. Moreno-Ata-nasio, Miner. Eng. 115 (2018) 53-67.

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Published

26.10.2021

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Articles

How to Cite

A COMPUTATIONAL STUDY OF A MULTI-SOLID–LIQUID FLUIDIZED BED INCORPORATING INCLINED CHANNELS: Original scientific paper. (2021). Chemical Industry & Chemical Engineering Quarterly, 27(3), 223-230. https://doi.org/10.2298/CICEQ200529041S

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