High-Temperature Spray Drying

Dolinsky, A. A.

doi:10.1081/drt-100103770

Cited by 42 publications

(20 citation statements)

References 1 publication

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“…3 and 4. Reported morphological development of particles along actual spray drying in the present work showed a great degree of similarity with those changes reported by Dolinsky (2001), when drying droplets of around 16 mm in diameter. This author observed that droplets start drying at temperatures below air temperature, shrink and once they reach the boiling point of the liquid phase, particles inflate and continue drying.…”

Section: Resultssupporting

confidence: 84%

“…These studies have been focused on the classical theory of drying and no experimental implications related to particle heterogeneity in terms of the ruggedness of the material along drying are reported which may have consequences in the way the droplet changes morphology along drying (Oakley, 1997). Evaporative stages and heat and mass transfer in spray drying can be described up to a certain extent through the evaluation of drying rates and also by monitoring morphological changes during drying macroscopic solid or liquid single spheres (Dolinsky, 2001;Ferrari, Meerdink, & Walstra, 1989;Hecht & King, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…Dolinsky (2001), when drying macroscopic droplets found that stages in dehydration can be related to actual operation and design parameters (height and diameter of chamber) which led to construction of the drier by evaluating the theoretical droplet flow pattern into the chamber, as well as by considering heat and mass transfer balances and empirical correlations. From this work, it is possible to derive that the identification of drying zones into the chamber as well as the evaluation of the change of moisture content of atomized material during dehydration, may help to propose links between drier design and product quality and to reinforce the usefulness of establishing analogies between drying of macroscopic droplets and actual spray drying operations.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Description of morphological changes of particles along spray drying

Alamilla-Beltrán

Chanona-Pérez

Jiménez–Aparicio

et al. 2005

Journal of Food Engineering

206

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Section: Resultssupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Description of morphological changes of particles along spray drying

Alamilla-Beltrán

Chanona-Pérez

Jiménez–Aparicio

et al. 2005

Journal of Food Engineering

206

View full text Add to dashboard Cite

“…Diffusion-based [1, 2, 25-27, 44, 60, 61, 83] and receding interface-based [22,23,46,63,64,84] drying kinetics approaches deal with spatial moisture and/or temperature distribution within droplets, and may be useful to predict surface morphology. The latter drying kinetics approaches require solving a set of partial differential equations using appropriate numerical methods; therefore, further complexity is involved when these models are incorporated into simulation tools.…”

Section: Drying Kinetics Approachesmentioning

confidence: 99%

One-dimensional simulation of co-current, dairy spray drying systems – pros and cons

Patel

Chen

Jeantet

et al. 2010

Dairy Sci. Technol.

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-One-dimensional (1-D) simulation is a useful technique for the evaluation of dryer operating parameters and product properties before conducting real spray drying trials. The main advantage of a 1-D simulation tool is its ability to perform fast calculations with significant simplicity. Mathematical models can be formulated using heat, mass and momentum balances at the droplet level to estimate time-dependent gas and droplet parameters. One of the purposes of this paper is to summarize key mathematical models that may be used to perform 1-D simulation for spray drying processes, predict essential product-drying gas parameters, assess the accuracy of prediction using pilot-scale spray drying data and perhaps most importantly address the main benefits and limitations of the 1-D simulation technique in relation to industrial spray drying operations. The results of a recent international collaborative study on the development of spray drying process optimization software for skim milk manufacture are presented as an example of the application of 1-D simulation in milk processing.spray drying / one-dimensional simulation / modeling / drying kinetics / dairy product / droplet drying Article published by EDP Sciences à l'échelle de la gouttelette pour estimer les paramètres de vapeur et de gouttelette qui varient au cours du temps. Un des objectifs de cet article est de présenter de façon synthétique les modèles mathé-matiques clés qui peuvent être utilisés pour réaliser une simulation 1-D, prédire les paramètres de vapeur essentiels pour le séchage du produit, évaluer la précision de la prédiction en utilisant les données du séchage par atomisation obtenues à l'échelle pilote, et enfin d'aborder les principaux bénéfices et limites de la technique de simulation 1-D en relation avec les opérations de séchage par atomisation industrielles. Les résultats d'une récente étude réalisée en collaboration internationale sur le développement d'un logiciel d'optimisation du procédé de séchage par atomisation pour la production de poudre de lait écrémé sont présentés pour illustrer l'application de la simulation 1-D.séchage par atomisation / simulation mono-dimensionnelle / modélisation / cinétique de séchage / produit laitier / séchage d'une gouttelette

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“…Evaporation stages and heat and mass transfer in spray drying can be described through the evolution of drying rates, as it was suggested by AlamillaBeltran [41]. Five stages of drying were proposed by Dolinsky [42], which are heating from its initial temperature to the equilibrium evaporation temperature, equilibrium evaporation, crust formation, boiling period and bound moisture removal period.…”

Section: Spray-dryingmentioning

confidence: 99%

Encapsulation and Co-Precipitation Processes with Supercritical Fluids: Applications with Essential Oils

Martín¹,

Varona²,

Navarrete³

et al. 2010

TOCENGJ

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Essential oils have important commercial applications as preservatives and flavours, and more recently as natural antimicrobial agents. These applications require a suitable formulation constituted by biodegradable compounds that protect the essential oil from degradation and evaporation at the same time that allows for a sustained release. Microcapsules of biopolymers loaded with essential oils meet these requirements. Such microcapsules can be prepared with different processes such as spray-drying, freeze-drying and coacervation, and supercritical fluids are an advantageous medium for this purpose. Some supercritical fluid-based precipitation processes have already been applied to produce these microcapsules. Amongst them, the results obtained with Particles from Gas Saturated Solutions (PGSS), PGSS-drying and Concentrated Powder Form (CPF) processes are particularly promising. Recent developments in the preparation of formulations with supercritical fluids include the preparation of liposomes and micelles, which can be suitable carriers for essential oils.

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High-Temperature Spray Drying

Cited by 42 publications

References 1 publication

Description of morphological changes of particles along spray drying

Description of morphological changes of particles along spray drying

One-dimensional simulation of co-current, dairy spray drying systems – pros and cons

Encapsulation and Co-Precipitation Processes with Supercritical Fluids: Applications with Essential Oils

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