Volumetric mass transfer coefficient in the fermenter for Rushton turbine in three-phase system

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F17%3A43914702" target="_blank" >RIV/60461373:22340/17:43914702 - 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 fermenter for Rushton turbine in three-phase system
Original language description
Waste-water treatment, fermentation, de-chlorination and hydrogenation are processes where gas-liquid-solid mass transfer can be limiting process in their utilization. The parameter which usually describes the mass transfer intensity in gas-liquid-solid system is volumetric mass transfer coefficient kLa. The aim of this work is to study experimentally the effect of solid particles presence on kLa values using reliable measuring method. Measurements were conducted in a three phase multiple-impeller fermenter of i.d. 29 cm containing microparticles of the diameter 137 ?30 ?m. Rushton turbine of the diameter of 1/3 of the vessel diameter were used. Dissolved oxygen (DO) polarographic probe were used for measurements. Dynamic pressure method (DPM) has been chosen for the measurement of kLa. Based on experimental kLa values, correlations are established, which describe mass transfer in fermenter with microparticles. Usually, the kLa correlations are based on gassed power input and superficial gas velocity. We tested several correlation types, evaluated their empirical parameters and proposed the correlation shapes suitable for fermenter design, operating and scale-up under the conditions, where solid particles affect the interfacial mass transfer.
Czech name
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Czech description
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Project
<a href="/en/project/GA15-21715S" target="_blank" >GA15-21715S: Gas-liquid mass transfer experimental study in presence of solid particles and in viscous liquids</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
PROCEEDINGS 44th International Conference of the Slovak Society of Chemical Engineering
ISBN
978-80-89597-58-1
ISSN
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e-ISSN
neuvedeno
Number of pages
10
Pages from-to
794-803
Publisher name
Slovak Society of Chemical Engineering
Place of publication
Bratislava
Event location
Demänovská dolina
Event date
May 22, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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