Experimental study of the temperature distribution and water evaporation in an axial dual-zone vortex chamber spray dryer

Wilde, Juray De; Dutta, Subhajit; Pati, Jnyana Ranjan; Broqueville, Axel de

doi:10.1080/07373937.2021.1966635

Cited by 4 publications

(2 citation statements)

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“…The gas leaves the chamber through a central chimney on the top or bottom plate. The use of gas–solid vortex reactors has been reported for biomass pyrolysis, biomass drying, spray drying, and particle coating . More recently, the use of gas–liquid vortex reactors (GLVRs) gained attention, given its capabilities of favorable mixing and mass transfer efficiency − at high throughput to reactor volume ratios, which ultimately can reduce the energy requirement for solvent regeneration without affecting the regeneration rate.…”

Section: Introductionmentioning

confidence: 99%

Process Intensification of CO₂ Desorption in a Gas–Liquid Vortex Reactor

Dutta,

Roy,

Lang

et al. 2024

Ind. Eng. Chem. Res.

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Section: Introductionmentioning

confidence: 99%

Process Intensification of CO₂ Desorption in a Gas–Liquid Vortex Reactor

Dutta,

Roy,

Lang

et al. 2024

Ind. Eng. Chem. Res.

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“…Recently, De Wilde et al [187] experimentally investigated the potential of spray drying in an axial zone vortex chamber; however, the tests were performed using water feed only. The multizone operation with distinct temperatures zones was demonstrated.…”

Section: Introductionmentioning

confidence: 99%

Towards a multizone vortex dryer for dairy sprays

Rahman

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Conventional co-current spray dryers are widely used in the dairy industry to produce milk powder. These dryers are known for their high capital costs and low thermal efficiencies and are responsible for almost 27-55% of the total energy consumption of the dairy industries. In comparison to co-current dryers, countercurrent dryers have higher thermal efficiencies but they are not employed in the food industry due to the risks of product degradation.The conventional spray dryers used in the food industry suffer from multitude of disadvantages. They operate at relatively low air temperatures to avoid product degradation, which results in small drying rates [13]. Furthermore, the terminal velocities of the particles result in small gas-solid slip velocities, restricting the heat and mass transfer. The advent of multi-stage spray dryers (two or three stages) with integrated fluidized beds has improved the energy efficiency of the process by 13% [13][14][15][16][17]. Nevertheless, the drying systems are still far from beingThe evolution of a vortex chamber technology is a Radial Multizone Dryer (RMD) [44][45][46][47], shown in Figure 1.1-b. In this configuration, hot air enters axially into the central zone while the vortex is created via relatively cold airflow entering the RMD via the tangential channels; see Figure 1.1a. The process intensification is developed as an outcome of both: multizone drying operations with high and low temperature air feeding zones, and high-G acceleration. Consequently, the drying occurs in two steps: (i) the majority of drying takes Chapter 6 summarizes the conclusions drawn in the previous chapters and provides recommendations for future research.Experimental investigations of the atomization and counter-current spray drying process 9 Chapter 2 EXPERIMENTAL INVESTIGATIONS OF THE ATOMIZATION AND COUNTER-CURRENT SPRAY DRYING PROCESSThis chapter presents an experimental analysis of a counter flow spray drying process using water and skim milk as a feed. The study is performed by examining the droplet size distribution of sprays and the temperature profiles in the dryer. The influence of air inlet temperature, air mass flow rate, feed flow rate, and droplet size on air temperatures in the dryer is evaluated. The evaporation and deposition zones are found to be highly dependent on droplet sizes. The obtained results show that it is possible to achieve efficient contact between hot air and spray in a small volume using a counter-current mechanism.

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Enhancing CO2 capture efficiency: Computational fluid dynamics investigation of gas-liquid vortex reactor configurations for process intensification

Chen,

Lang,

Kourou

et al. 2024

Chemical Engineering Journal

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Experimental study of the temperature distribution and water evaporation in an axial dual-zone vortex chamber spray dryer

Cited by 4 publications

References 27 publications

Process Intensification of CO₂ Desorption in a Gas–Liquid Vortex Reactor

Process Intensification of CO₂ Desorption in a Gas–Liquid Vortex Reactor

Towards a multizone vortex dryer for dairy sprays

Enhancing CO2 capture efficiency: Computational fluid dynamics investigation of gas-liquid vortex reactor configurations for process intensification

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Experimental study of the temperature distribution and water evaporation in an axial dual-zone vortex chamber spray dryer

Cited by 4 publications

References 27 publications

Process Intensification of CO2 Desorption in a Gas–Liquid Vortex Reactor

Process Intensification of CO2 Desorption in a Gas–Liquid Vortex Reactor

Towards a multizone vortex dryer for dairy sprays

Enhancing CO2 capture efficiency: Computational fluid dynamics investigation of gas-liquid vortex reactor configurations for process intensification

Contact Info

Product

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About

Process Intensification of CO₂ Desorption in a Gas–Liquid Vortex Reactor

Process Intensification of CO₂ Desorption in a Gas–Liquid Vortex Reactor