Volumetric mass transfer coefficient in non-Newtonian fluids in spout fluid beds - Part 1

Mohammed Z. Anabtawi, Nidal Hilal, A. E. Al Muftah

    Research output: Contribution to journalArticle

    Abstract

    The volumetric liquid-phase mass transfer coefficient, kLa, was determined by absorption of oxygen in air using six different carboxy-methyl cellulose (CMC) solutions with different rheological values in three phase spout-fluid beds operated continuously with respect to both gas and liquid. Three cylindrical columns of 7.4 cm, 11.4 cm, and 14.4 cm diameters were used. Gas velocity was varied between 0.00154-0.00563 m/s, liquid velocity between 0.0116-0.0387 m/s, surface tension between 0.00416-0.0189 N/m, static bed height between 6.0-10.8 cm, and spherical glass particles of 1.75 mm diameter were used as packing material. A single nozzle sparger of 1.0 cm diameter was used in the spouting line. The volumetric mass transfer coefficient was found to increase with gas velocity, liquid velocity, and static bed height and to decrease with the increase of the effective liquid viscosity of the CMC solution. A dimensionless correlation was developed and compared with those listed in the literature.

    Original languageEnglish (US)
    Pages (from-to)759-764
    Number of pages6
    JournalChemical Engineering and Technology
    Volume26
    Issue number7
    DOIs
    StatePublished - Jul 1 2003

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    Mass transfer
    Methylcellulose
    Fluids
    Gases
    Liquids
    Cellulose
    Viscosity of liquids
    Surface tension
    Nozzles
    Oxygen
    Glass
    Air

    ASJC Scopus subject areas

    • Chemistry(all)
    • Chemical Engineering(all)
    • Industrial and Manufacturing Engineering

    Cite this

    Volumetric mass transfer coefficient in non-Newtonian fluids in spout fluid beds - Part 1. / Anabtawi, Mohammed Z.; Hilal, Nidal; Al Muftah, A. E.

    In: Chemical Engineering and Technology, Vol. 26, No. 7, 01.07.2003, p. 759-764.

    Research output: Contribution to journalArticle

    Anabtawi, Mohammed Z. ; Hilal, Nidal ; Al Muftah, A. E. / Volumetric mass transfer coefficient in non-Newtonian fluids in spout fluid beds - Part 1. In: Chemical Engineering and Technology. 2003 ; Vol. 26, No. 7. pp. 759-764.
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