Volumetric mass transfer coefficient in viscous liquid in mechanically agitated fermenters. Measurements and Scale-up.

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

Volumetric mass transfer coefficient in viscous liquid in mechanically agitated fermenters. Measurements and Scale-up.

Popis výsledku v původním jazyce

Transport characteristic such as volumetric mass transfer coefficients, kLa, is the key parameter in the design of mechanically agitated gas–liquid contactors. For their successful design, values of the key parameter can be estimated using empirical correlations. The goal of this work is to complete a complex study to investigate the behavior of kLa in multiple-impeller vessels in non-coalescent viscous batch. We used the dynamic pressure method (DPM). The experiments were conducted in multiple-impeller vessels of both laboratory and pilot-plant scale, which enabled the scale-up studies. Several impeller types with different diameters and their combinations on a common shaft were used in the vessel, under various impeller tip speeds and gassing rates. For all impeller combinations, the volumetric mass transfer coefficient was measured in viscous batch. The measured transport characteristic was summarized into correlations. Several literature correlations were judged, using these extensive datasets. In addition to this, new correlation shapes were also established. These correlations can be used to predict transport characteristics in industrial-scale vessels under a wide range of operational conditions.

Název v anglickém jazyce

Volumetric mass transfer coefficient in viscous liquid in mechanically agitated fermenters. Measurements and Scale-up.

Popis výsledku anglicky

Transport characteristic such as volumetric mass transfer coefficients, kLa, is the key parameter in the design of mechanically agitated gas–liquid contactors. For their successful design, values of the key parameter can be estimated using empirical correlations. The goal of this work is to complete a complex study to investigate the behavior of kLa in multiple-impeller vessels in non-coalescent viscous batch. We used the dynamic pressure method (DPM). The experiments were conducted in multiple-impeller vessels of both laboratory and pilot-plant scale, which enabled the scale-up studies. Several impeller types with different diameters and their combinations on a common shaft were used in the vessel, under various impeller tip speeds and gassing rates. For all impeller combinations, the volumetric mass transfer coefficient was measured in viscous batch. The measured transport characteristic was summarized into correlations. Several literature correlations were judged, using these extensive datasets. In addition to this, new correlation shapes were also established. These correlations can be used to predict transport characteristics in industrial-scale vessels under a wide range of operational conditions.

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

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of 45th International Conference of Slovak Society of Chemical Engineering

ISBN

978-80-89597-89-5

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

14

Strana od-do

31-44

Název nakladatele

Slovak Society of Chemical Engineering

Místo vydání

Bratislava

Místo konání akce

Tatranské Matriare

Datum konání akce

21. 5. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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