Gas–liquid and liquid–solid mass transfers in two types of stationary catalytic basket laboratory reactor

Pitault, Isabelle; Fongarland, Pascal; Koepke, Daniel; Mitrovic, Marijana; Ronze, Didier; Forissier, M.

doi:10.1016/j.ces.2005.04.041

Cited by 20 publications

(7 citation statements)

References 33 publications

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“…The most reliable approach is direct experimental measurement using instrument. For instance, k d i,k, the liquid phase mass transfer coefficient can be measured by solid dissolution 16 . There are also correlations available for its estimation like the correlation given by Geankoplis, which can be used to predict the mass-transfer coefficients from liquid phase to the surface of small catalyst particles, microorganisms and other solids or liquid drops 12 .…”

Section: Simulation Resultsmentioning

confidence: 99%

A multi-stage multi-component transfer rate morphological population balance model for crystallization processes

et al. 2019

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Section: Simulation Resultsmentioning

confidence: 99%

A multi-stage multi-component transfer rate morphological population balance model for crystallization processes

et al. 2019

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“…The mean square opening of the basket screen is about 800 µm. More details on the dimensions and characteristics of the PARR basket are given in Pitault et al [5]. Pictures of the impeller and both studied systems (basket and foam block) are provided in Figure 1.…”

Section: Methodsmentioning

confidence: 99%

“…Catalytic stirred-reactors generally use a powder catalyst that has to be filtered before collecting the reaction products. Different options have been studied in the past to overcome the filtration issues: either use a basket filled with millimetric beads or extrudates (Robinson-Mahoney reactor [4][5][6]), or use a structured mixer [7], for example using open-cell foams [8][9][10]. The basket reactors have been assessed either as stationary or as rotating devices.…”

Section: Introductionmentioning

confidence: 99%

A New Concept of Stirred Multiphase Reactor Using a Stationary Catalytic Foam

et al. 2018

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Abstract:Developing new stirred gas-liquid-solid reactors with high mass transfer capabilities is still a challenge. In this publication, we present a new concept of multiphase reactor using a stationary catalytic foam and a gas-inducing impeller. The gas-liquid (GL) and liquid-solid (LS) mass transfer rates in this reactor were compared to a stirred reactor with basket filled with beads. Batch absorption of hydrogen and measurement of α-methylstyrene hydrogenation rate on Pd/Al 2 O 3 catalyst were used to evaluate k GL a GL coefficients and k LS coefficients, respectively. With similar LS transfer rates to the basket-reactor and much higher GL transfer rates, the new reactor reveals a very promising tool for intrinsic kinetics investigations.

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“…This method is simple to set up since most bench‐scale units are equipped with pressure sensors. Some authors have applied these methods to the characterization of bench‐scale reactors , , , .…”

Section: Introductionmentioning

confidence: 99%

Estimation of k_La Values in Bench‐Scale Stirred Tank Reactors with Self‐Inducing Impeller by Multiphase CFD Simulations

2019

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A multiphase computational fluid dynamics (CFD) simulation methodology is developed and proposed for the estimation of the spatial distribution of k L a values in a bench-scale reactor equipped with a self-inducing impeller. The importance of estimating an apparent drag coefficient, which considers the effect of turbulence on the gas bubble rising velocity, is also tackled by applying different correlations available in literature, namely, Brucato, modified Brucato, and Pinelli correlations. The spatial distribution of k L a values in the agitated vessel is found from the CFD results using Danckwert's surface renewal model. An analysis of the gas volume fraction distribution obtained from the simulations is performed in order to choose the most suitable drag model. The modified Brucato correction correlation for the drag force exhibits the best agreement with experimental data.

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Gas–liquid and liquid–solid mass transfers in two types of stationary catalytic basket laboratory reactor

Cited by 20 publications

References 33 publications

A multi-stage multi-component transfer rate morphological population balance model for crystallization processes

A multi-stage multi-component transfer rate morphological population balance model for crystallization processes

A New Concept of Stirred Multiphase Reactor Using a Stationary Catalytic Foam

Estimation of k_La Values in Bench‐Scale Stirred Tank Reactors with Self‐Inducing Impeller by Multiphase CFD Simulations

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Gas–liquid and liquid–solid mass transfers in two types of stationary catalytic basket laboratory reactor

Cited by 20 publications

References 33 publications

A multi-stage multi-component transfer rate morphological population balance model for crystallization processes

A multi-stage multi-component transfer rate morphological population balance model for crystallization processes

A New Concept of Stirred Multiphase Reactor Using a Stationary Catalytic Foam

Estimation of kLa Values in Bench‐Scale Stirred Tank Reactors with Self‐Inducing Impeller by Multiphase CFD Simulations

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Estimation of k_La Values in Bench‐Scale Stirred Tank Reactors with Self‐Inducing Impeller by Multiphase CFD Simulations