Prediction of power consumption in mechanically agitated gas-liquid reactors in non-coalescent batch

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Prediction of power consumption in mechanically agitated gas-liquid reactors in non-coalescent batch

Popis výsledku v původním jazyce

Mass transport characteristic such as volumetric mass transfer coefficient, kLa, gas hold-up and power input are often the essential parameters for mechanically agitated gas-liquid contactors design. The parameters for mass transfer determination are usually set on the base of the empirical data but should be set on the base of chemical engineering correlation instead. Stable chemical engineering correlation could be obtained on the base of the sufficient amount of experimental data. The power input is usually considered as the scale of energy dissipation for other characteristics. The aim of this work is to create a power input correlation for the industrial design of process with a non-coalescent batch that would be appropriate for a broad range of operational condition. The experiments were performed in two vessels, pilot-plant scale and laboratory scale one. Various impeller types, including their combinations on a common shaft, different diameters of impellers, diverse impeller frequencies and three gas flow rates were also used. Various correlation shapes for power input prediction were evaluated. The resulting correlation we recommend is able to predict power input for impellers in industrial scale design for a significant scope of operational conditions. Moreover, separated correlations for the bottom section and for upper sections of multiple impeller configurations were developed. The separated correlations could be used as an input for the evaluation of other interfacial mass transfer characteristics as kLa is.

Název v anglickém jazyce

Prediction of power consumption in mechanically agitated gas-liquid reactors in non-coalescent batch

Popis výsledku anglicky

Mass transport characteristic such as volumetric mass transfer coefficient, kLa, gas hold-up and power input are often the essential parameters for mechanically agitated gas-liquid contactors design. The parameters for mass transfer determination are usually set on the base of the empirical data but should be set on the base of chemical engineering correlation instead. Stable chemical engineering correlation could be obtained on the base of the sufficient amount of experimental data. The power input is usually considered as the scale of energy dissipation for other characteristics. The aim of this work is to create a power input correlation for the industrial design of process with a non-coalescent batch that would be appropriate for a broad range of operational condition. The experiments were performed in two vessels, pilot-plant scale and laboratory scale one. Various impeller types, including their combinations on a common shaft, different diameters of impellers, diverse impeller frequencies and three gas flow rates were also used. Various correlation shapes for power input prediction were evaluated. The resulting correlation we recommend is able to predict power input for impellers in industrial scale design for a significant scope of operational conditions. Moreover, separated correlations for the bottom section and for upper sections of multiple impeller configurations were developed. The separated correlations could be used as an input for the evaluation of other interfacial mass transfer characteristics as kLa is.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20401 - Chemical engineering (plants, products)

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings 46th International Conference of the Slovak Society of Chemical Engineering

ISBN

978-80-8208-011-0

ISSN

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e-ISSN

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Počet stran výsledku

15

Strana od-do

1-15

Název nakladatele

Slovak Society of Chemical Engineering

Místo vydání

Bratislava

Místo konání akce

Tatranské Matliare

Datum konání akce

20. 5. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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