Prediction of critical fluidization velocity and maximum bed pressure drop for binary mixture of regular particles in gas–solid tapered fluidized beds |
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| Authors: | DC Sau S Mohanty KC Biswal |
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| Affiliation: | aDepartment of Chemical Engineering, Indira Gandhi Institute of Technology, Sarang 759146, India;bInstitute of Minerals & Materials Technology, Bhubaneswar 751013, India;cDepartment of Chemical Engineering, National Institute of Technology, Rourkela 769008, India |
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| Abstract: | The problems associated with conventional (cylindrical) fluidized beds, viz., fluidization of wider size range of particles, entrainment of particles and limitation of fluidization velocity could be overcome by using tapered fluidized beds. Limited work has been carried out to study the hydrodynamics of single materials with uniform size particles in tapered beds. In the present work, an attempt has been made to study the hydrodynamic characteristics of binary mixtures of homogeneous and heterogeneous regular particles (glass bead and sago) in tapered fluidized beds having different tapered angles. Correlations have been developed for critical fluidization velocity and maximum bed pressure drop for gas–solid tapered fluidized beds for binary mixtures of regular particles. Model predictions were compared with experimental data, which were in good agreement. |
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| Keywords: | Gas– solid fluidization Critical fluidization velocity Maximum bed pressure drop Tapered fluidized beds Binary mixture |
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