Transport characteristics of various multiple-impeller configurations in mechanically agitated gas-liquid dispersion with higher viscosity.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F04%3A00011294" target="_blank" >RIV/60461373:22340/04:00011294 - 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

Transport characteristics of various multiple-impeller configurations in mechanically agitated gas-liquid dispersion with higher viscosity.

Original language description

Mixing intensity, gas hold-up and volumetric mass transfer coefficient of various multiple-impeller configurations are measured in a vessel of inner diameter 0.29 m equipped with three impellers on a common shaft. Five types of impellers are used: Rushton turbine, pitched blade impeller, Techmix 335, Lightnin A315 and Narcissus impeller. Distilled water with 3 vol.% of copolymer of acrylonitrile and acrylic acid with commercial name Sokrat 44 is used as a liquid phase with Newtonian behaviour and viscosity 12.9 mPa.s. Air is used as gas phase. Mixing intensity was measured using tracer experiment and Dynamic Pressure Method was used for the measurement of volumetric mass transfer coefficient. Gas hold-up and volumetric mass transfer coefficient are presented for individual impeller configurations as functions of total power consumption in the vessel and superficial gas velocity. The results are compared with transport characteristics for non-viscous solutions measured previously. The i

Czech name

Transportní charakteristiky různých kombinací míchadel v nádobách s více míchadly při míchání viskózních disperzí plyyn-kapalina.

Czech description

Vhodnou experimentální technikou vyvinutou na pracovišti dříve byly proměřeny transportní charakteristiky dvoufázového systému kapalina-plyn a formulovány závěry o vlivu geometrie míchadel na mezifázový přestup hmoty.

Type

D - Article in proceedings

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

<a href="/en/project/GA104%2F02%2F0322" target="_blank" >GA104/02/0322: Spacial distribution of turbulence intensity and its effect on interfacial mass transfer in mechanically agitated gas-liquid dispersions</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2004

Confidentiality

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

Article name in the collection

Proceeding of 31th International Conference of Chemical Engineering, Tatranské Matliare, Slovakia

ISBN

80-227-2052-6

ISSN

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e-ISSN

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Number of pages

7

Pages from-to

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Publisher name

Slovak Society of Chemical Engineering

Place of publication

Bratislava

Event location

Bratislava

Event date

May 24, 2004

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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