The Use of a Spouted Bed in the Fertilizer Coating of Soybean Seeds

Filho, R. Stephano; Barrozo, M. A. S.; Limaverde, J.R.; Ataíde, Carlos Henrique

doi:10.1080/07373939808917511

Cited by 48 publications

(18 citation statements)

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“…SB devices are also extensively applied for coating of solids such as soybean seeds [23], nuclear fuel [22][23][24][25][26], group B iron powders [27], aerogels [28], urea [29] or polymethyl methacrylate [30]. Spouted beds are also used as chemical reactors to carry out, for example, benzyl alcohol polymerisation reactions [31], the production of hydrogen from the reforming of ethylene glycol with olivine [32], the synthesis of ceramic polymer composites [33][34][35], wastewater treatments [36][37][38] and electrochemical reactions [39,40].…”

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confidence: 99%

Modelling of Spouted and Spout-Fluid Beds: Key for Their Successful Scale Up

et al. 2017

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The development of robust mathematical models could provide the necessary tools for a more rapid, efficient, and reliable spouted bed technology development. Computer simulations can be very useful to aid this design and scale-up process: firstly, they can contribute to obtain a fundamental insight into their complex dynamic behavior by understanding the elementary physical principles such as drag, friction, dissipation etc.; secondly, the simulations can be used as a design tool where the ultimate goal is to have a numerical model with predictive capabilities for gas-particle flows at engineering scale. Clearly, one single simulation method will not be able to achieve this goal, but a hierarchy of methods modelling phenomena on different length and time scales can achieve this. The most fruitful approach will be when they are simultaneously followed, so that they can mutually benefit from each other. In this sense, this paper presents a review of the current state of the art of modelling on spouted and spout-fluid beds through an analysis of recent literature following a multiscale approach (molecular and particle, lab, plant and industrial scale). The main features of the different scales together with their current limits are discussed and specific topics are highlighted as paths that still need to be explored. In summary, the paper aims to define the theoretical setline and the basis of improvement that would lead to a robust multiscale model with solid links between micro and macroscopic phenomena. If done with the correct balance between accuracy and computational costs it will gear SB towards their reliable and successful implementation.

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confidence: 99%

Modelling of Spouted and Spout-Fluid Beds: Key for Their Successful Scale Up

et al. 2017

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“…However, these criteria may be insufficient to discriminate between nonlinear regression equations like equilibrium sorption isotherms models (Conceição Filho et al. ). Other properties are desirable for nonlinear models, such as the LS parameters should be almost unbiased, normally distributed, and its variances should be close to the minimum variance (Lira et al.…”

Section: Sorption Equilibrium Equationsmentioning

confidence: 99%

Searching the best equilibrium moisture equation for lettuce seeds using measures of curvature and bias

Bortolotti

Barrozo

2013

Food Science & Nutrition

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In the present work, we performed a discrimination analysis of the nonlinear equations used to describe sorption isotherms of the lettuce seeds. The equilibrium data were obtained by the static method using saturated salt solutions. The best model to describe the equilibrium moisture of lettuce seeds was selected using measures of curvature and bias. The obtained results showed that the Copace equation was the best model in terms of nonsignificance for bias and nonlinearity measures.

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“…Spouted beds are used in many processes of great interest, such as drying of granular materials, coating of particles, gasification and pyrolysis, mechanical extraction, seeds inoculation and coating, although most of these are still under research and development. In these processes an effective contact between the phases involved is essential to reach higher mass transfer, energy and momentum rates.…”

Section: Introductionmentioning

confidence: 99%

Study of hybrid drag models for predicting hydrodynamic behaviour in a spouted bed

et al. 2013

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A hybridisation study of drag models was performed in a conical–cylindrical spouted bed by means of CFD simulations using an Eulerian–Eulerian multiphase model. In order to evaluate the simulation results, time‐averaged velocity distributions of the particulate phase were compared with the experimental data obtained by means of an optical fibre probe. The hybrid drag model considering both the volume fraction and the granular temperature distribution in the drag force calculation predicted the experimental data of the particle velocity distribution better than the other simulations performed in this work using other hybrid drag models.

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The Use of a Spouted Bed in the Fertilizer Coating of Soybean Seeds

Cited by 48 publications

References 1 publication

Modelling of Spouted and Spout-Fluid Beds: Key for Their Successful Scale Up

Modelling of Spouted and Spout-Fluid Beds: Key for Their Successful Scale Up

Searching the best equilibrium moisture equation for lettuce seeds using measures of curvature and bias

Study of hybrid drag models for predicting hydrodynamic behaviour in a spouted bed

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