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Mechanism of mass transfer from bubbles in dispersions. Part I. Danckwerts' plot method with sulphite solutions in the presence of viscosity and surface tension changing agents

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F05%3A00014749" target="_blank" >RIV/60461373:22340/05:00014749 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Mechanism of mass transfer from bubbles in dispersions. Part I. Danckwerts' plot method with sulphite solutions in the presence of viscosity and surface tension changing agents

  • Original language description

    The paper presents physical properties and kinetics data of sodium sulphite solution, pure or with additives that change surface tension and viscosity. Sokrat44 (copolymer of acrylonitrile and acrylic acid) and short-fiber arboxymethylcellulose (CMC) forthe Newtonian and long-fiber CMCfor the non-Newtonian viscosity enhancement and Ocenol (cis-9-octadecen-1-ol) or polyethylenglycol (PEG) 1000 for surface tension change were used. The kinetics data are presented under the form of dependencies of oxygenabsorption rate (measured in stirred cell) on atalyst (Co 2 +) concentration, oxygen concentration in gas, pH and temperature of the solution. The method based on anckwerts' plot for the separate determination of mass transfer coefficient k.... and gas-liquid interfacial area a in gas -liquid dispersions is described using the kinetics data. Problematic features of the method both at low cobalt atalyst concentrations (deceleration of the chemical oxidation of sulphite in presence of visc

  • Czech name

    Mechanismus přestupu hmoty do turbulentní kapaliny. Část I: Danckwertsova metoda s rozotek sulfitu sodného v přítomnosti látek měnících viskozitu a povrchové napětí

  • Czech description

    Práce prezentuje fyzikální vlastnosti a reakční kinetiku roztoků sulfitu s přídavky látek ovlivňujících viskozitu a povrchové napětí. Kinetická data jsou prezentována v závislosti na koncentraci katalyzátoru a na koncentraci kyslíku. Je diskutována problematika spojená s nízkou koncentrací katalyzátoru (snížení rychlosti chemické reakce vlivem aditiv) a s vysokou rychlostí absorpce (scvrkávání bublin). Metoda bude použita v části II k měření v mechanicky míchané disperzi.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CI - Industrial chemistry and chemical engineering

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GP104%2F05%2FP203" target="_blank" >GP104/05/P203: Study of the influence of surface-active compounds on mass transfer mechanism between gas and turbulent liquid</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2005

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Chemical Engineering and Processing

  • ISSN

    0255-2701

  • e-ISSN

  • Volume of the periodical

    44

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    9

  • Pages from-to

    353-361

  • UT code for WoS article

  • EID of the result in the Scopus database