A COMPUTATIONAL STUDY OF A MULTI-SOLID–LIQUID FLUIDIZED BED INCORPORATING INCLINED CHANNELS
Original scientific paper
DOI:
https://doi.org/10.2298/CICEQ200529041SKeywords:
density separation, fluidization, multiphase flow, polydisperse suspension, segregation-dispersion model, simulationsAbstract
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.
Downloads
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Authors who publish with this journal agree to the following terms:
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
Authors grant to the Publisher the following rights to the manuscript, including any supplemental material, and any parts, extracts or elements thereof:
- the right to reproduce and distribute the Manuscript in printed form, including print-on-demand;
- the right to produce prepublications, reprints, and special editions of the Manuscript;
- the right to translate the Manuscript into other languages;
- the right to reproduce the Manuscript using photomechanical or similar means including, but not limited to photocopy, and the right to distribute these reproductions;
- the right to reproduce and distribute the Manuscript electronically or optically on any and all data carriers or storage media – especially in machine readable/digitalized form on data carriers such as hard drive, CD-Rom, DVD, Blu-ray Disc (BD), Mini-Disk, data tape – and the right to reproduce and distribute the Article via these data carriers;
- the right to store the Manuscript in databases, including online databases, and the right of transmission of the Manuscript in all technical systems and modes;
- the right to make the Manuscript available to the public or to closed user groups on individual demand, for use on monitors or other readers (including e-books), and in printable form for the user, either via the internet, other online services, or via internal or external networks.
