Mass transfer correlations for multiple-impeller gas -liquid contactors.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F07%3A00018471" target="_blank" >RIV/60461373:22340/07:00018471 - 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

Mass transfer correlations for multiple-impeller gas -liquid contactors.

Original language description

Mixing intensity of the liquid phase,power consumption and volumetric mass transfer coef cients are presented for various single-,double- and triple-impeller con gurations.The measurements were carried out in a at-bottomed vessel of inner diameter 0.29 m.Twenty-eight combinations of various impeller types inducing radial,axial and combined liquid ow were used,viz.a Rushton Turbine (RT),a six Pitched Blade (PB),Techmix 335 (TX)impellers pumping downwards (D)and upwards (U),Lightnin A315 (LTN)and a Narcissus (NS)impeller. Water,0.5 M Na 2 SO 4 solution and solution of commercial thickener (Sokrat 44)were used as a liquid phase,representing coalescent,non- coalescent and viscous batches,respectively.Mixing intensity of the liquid phase was characterized by both exchange ows and homogenization times.The dimensionless mixing time,Nt m ,does not depend on Reynolds number but on the direction of liquid ow induced by the impeller. The axial impellers (TXU,TXD,and LTN)provide more effective hom

Czech name

Korelace koeficientu přestupu hmoty v nádobě s více míchadly

Czech description

Mixing intensity of the liquid phase,power consumption and volumetric mass transfer coef cients are presented for various single-,double- and triple-impeller con gurations.The measurements were carried out in a at-bottomed vessel of inner diameter 0.29 m.Twenty-eight combinations of various impeller types inducing radial,axial and combined liquid ow were used,viz.a Rushton Turbine (RT),a six Pitched Blade (PB),Techmix 335 (TX)impellers pumping downwards (D)and upwards (U),Lightnin A315 (LTN)and a Narcissus (NS)impeller. Water,0.5 M Na 2 SO 4 solution and solution of commercial thickener (Sokrat 44)were used as a liquid phase,representing coalescent,non- coalescent and viscous batches,respectively.Mixing intensity of the liquid phase was characterized by both exchange ows and homogenization times.The dimensionless mixing time,Nt m ,does not depend on Reynolds number but on the direction of liquid ow induced by the impeller. The axial impellers (TXU,TXD,and LTN)provide more effective hom

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

<a href="/en/project/GA104%2F06%2F0736" target="_blank" >GA104/06/0736: Design of a pilot-plant gas-liquid contactors agitated by multiple impellers based on laboratory scale data</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

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

Name of the periodical

Chemical Engineering Science

ISSN

0009-2509

e-ISSN

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Volume of the periodical

62

Issue of the periodical within the volume

1

Country of publishing house

BE - BELGIUM

Number of pages

20

Pages from-to

1650-1669

UT code for WoS article

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EID of the result in the Scopus database

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