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

Result code in 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>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20401 - Chemical engineering (plants, products)

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2019

Confidentiality

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

Article name in the collection

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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Number of pages

16

Pages from-to

1-16

Publisher name

Slovak Society of Chemical Engineering

Place of publication

Bratislava

Event location

Tatranské Matliare

Event date

May 20, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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