Volumetric mass transfer coefficient in the gas-liquid contactor agitated by Rushton turbines of various diameters in non-coalescent batch

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F19%3A43918847" target="_blank" >RIV/60461373:22340/19:43918847 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Volumetric mass transfer coefficient in the gas-liquid contactor agitated by Rushton turbines of various diameters in non-coalescent batch

Popis výsledku v původním jazyce

Mass transfer based processes are emerging in the biobased, chemical and food industry. For the processes with the gas-liquid mass transfer rate as the controlling factor, the volumetric mass transfer coefficient, kLa, becomes the indispensable parameter. At the moment the volumetric mass transfer coefficient is commonly predicted on the base of literature correlations. Application of many correlations is limited by way of their development (some of the correlation were established just only for one vessel size or one ratio between impeller diameter and vessel diameter). With an intent to create an appropriate correlation for kLa prediction in non-coalescent batch the extensive experimental dataset was measured by Dynamic pressure method (DPM) which have been demonstrated to be physically correct in the past. Our previous works aimed at the kLa dependencies in a viscous and the coalescent batch result in appropriate correlations that are viable for examined process conditions. Our next target is to describe the relationship between various impeller diameters and transport characteristic (mainly kLa) in the non-coalescent type of the batch. The experiments were carried out in a multiple-impeller vessel equipped with Rushton turbines (of several diameters) and in both, laboratory and pilot-plant scale. Various impeller frequencies and gas flow rates were used for experiments. The experiment based correlation for kLa prediction in the non-coalescent batch is presented, which can be used in the industrial design of gas-liquid contactors operating with non-coalescent batch.

Název v anglickém jazyce

Volumetric mass transfer coefficient in the gas-liquid contactor agitated by Rushton turbines of various diameters in non-coalescent batch

Popis výsledku anglicky

Mass transfer based processes are emerging in the biobased, chemical and food industry. For the processes with the gas-liquid mass transfer rate as the controlling factor, the volumetric mass transfer coefficient, kLa, becomes the indispensable parameter. At the moment the volumetric mass transfer coefficient is commonly predicted on the base of literature correlations. Application of many correlations is limited by way of their development (some of the correlation were established just only for one vessel size or one ratio between impeller diameter and vessel diameter). With an intent to create an appropriate correlation for kLa prediction in non-coalescent batch the extensive experimental dataset was measured by Dynamic pressure method (DPM) which have been demonstrated to be physically correct in the past. Our previous works aimed at the kLa dependencies in a viscous and the coalescent batch result in appropriate correlations that are viable for examined process conditions. Our next target is to describe the relationship between various impeller diameters and transport characteristic (mainly kLa) in the non-coalescent type of the batch. The experiments were carried out in a multiple-impeller vessel equipped with Rushton turbines (of several diameters) and in both, laboratory and pilot-plant scale. Various impeller frequencies and gas flow rates were used for experiments. The experiment based correlation for kLa prediction in the non-coalescent batch is presented, which can be used in the industrial design of gas-liquid contactors operating with non-coalescent batch.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20401 - Chemical engineering (plants, products)

Projekt

—

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

—

e-ISSN

—

Počet stran výsledku

16

Strana od-do

1-16

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

—