Fluid1zed Bed Spray Granulation and Film Coating a New Method for the Investigation of the Coating Process on a Single Sphere

Link, Kersten Christoph; Schlünder, Ernst‐Ulrich

doi:10.1080/07373939708917330

Cited by 19 publications

(26 citation statements)

References 2 publications

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“…The powders can be mixed, granulated and dried in the same equipment to minimize the equipment costs, loss of product during transfer and the possibility of cross-contamination. Over recent decades, fluidized bed granulation has been extensively studied due to its complexity and many interrelated process variables, which are mainly 3 divided into two categories according to the two main features of spray fluidized bed granulation: binder spraying and fluidization [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional computational fluid dynamics (CFD) study of the gas–particle circulation pattern within a fluidized bed granulator: By full factorial design of fluidization velocity and particle size

Liu

Yoon

2016

Drying Technology

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The fluidization velocity and mean particle size were selected to be numerically investigated pertaining to their effects on the gas-particle circulation pattern within a fluidized bed granulator by three-dimensional CFD simulation applying an Eulerian-Eulerian two-fluid model (EETFM). The CFD simulations were designed by full-factorial design method and the developed CFD model was experimentally validated.The fluidization process was proved to reach a quasi-steady state. The gas-particle circulation pattern and particle concentration distribution were analyzed based on fluidization velocity and mean particle size. A mathematical model was developed to provide guidance on how to change fluidization level during one experiment.2 Graphical Abstract KEYWORDS: fluidized bed granulator; fluidization; computational fluid dynamics (CFD); gas-particle hydrodynamics; full-factorial design

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Section: Introductionmentioning

confidence: 99%

Three-dimensional computational fluid dynamics (CFD) study of the gas–particle circulation pattern within a fluidized bed granulator: By full factorial design of fluidization velocity and particle size

Liu

Yoon

2016

Drying Technology

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“…The temperature, velocity, and humidity of fluidizing air strongly influence the evaporation capacity. Although coating at high evaporation capacity condition could avoid the agglomeration of coated particles during coating, it may cause poor product quality such as the crack of coating layer (Link and Schlünder 1997) and the fissure of core particles (Palamanit et al 2013). In addition, it leads to low coating efficiency since the droplets may be completely evaporated before contacting with fluidized particles (Kage et al 1996;Dewettinck and Huyghebaert 1998;Ronsse et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Top-Spray Fluidized Bed Coating for Healthy Coated Rice Production

Palamanit

Prachayawarakorn

Tungtrakul

et al. 2016

Food Bioprocess Technol

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Coating with top-spray fluidized bed at inappropriate operating condition not only provides low product quality but also leads to low coating efficiency and improper energy consumption. The objective of this study was therefore to study the effects of superficial air velocity (Vf), atomization air pressure (Ap), and recycled exhaust air (Ra) on the performance of top-spray fluidized bed coating (TSFBC) in terms of product quality, coating efficiency (CE), and energy consumption for producing turmeric extract coated rice (TECR). The experimental results showed that the operation of TSFBC without Ra provided the final moisture content (MC) of TECR lower than 12 % (wet basis (w.b.)) for all Vf's and Ap's. The lowering final MC of TECR below 11.8 % (w.b.) led to the fissure of all TECR kernels. The Ra with 80 % could significantly reduce the number of fissured kernels and the energy consumption of electric heater by 41.7-46.5 %. The operation of TSFBC at low Vf, i.e., 2 m/s, resulted in high number of uncoated white rice kernels (UCWR) for all Ap's and Ra. When the Vf was increased to 2.5 or 3 m/s, the number of UCWR was significantly reduced and the value of CE was higher than that at 2 m/s. At such both velocities, the Ap and Ra insignificantly affected the CE but the Ra slightly affected the number of UCWR.

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“…The repeated wetting -drying cycle of fluidized particles creates of a uniform, layered structure around individual particles; this type of particle growth is called "layering" [20]. Layering represents the preferred growth mechanism in coating applications.…”

mentioning

confidence: 99%

“…According to Schlünder and Link, following a trial and error approach represents the only way to determine optimum operating conditions for a fluidized bed coating process. This is because of enormous number of variables affecting fluidized bed coating process [20,25].…”

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confidence: 99%

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Experimental Investigation and CFD Simulation of Top Spray Fluidized Bed Coating System

Seyedin

Ardjmand

Safekordi

et al. 2016

Period. Polytech. Chem. Eng.

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Fluid1zed Bed Spray Granulation and Film Coating a New Method for the Investigation of the Coating Process on a Single Sphere

Cited by 19 publications

References 2 publications

Three-dimensional computational fluid dynamics (CFD) study of the gas–particle circulation pattern within a fluidized bed granulator: By full factorial design of fluidization velocity and particle size

Three-dimensional computational fluid dynamics (CFD) study of the gas–particle circulation pattern within a fluidized bed granulator: By full factorial design of fluidization velocity and particle size

Performance Evaluation of Top-Spray Fluidized Bed Coating for Healthy Coated Rice Production

Experimental Investigation and CFD Simulation of Top Spray Fluidized Bed Coating System

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