Interfacial areas and gas hold-ups at elevated pressures in a mechanically agitated gas-liquid reactor

Martin Oyevaar, Ad Zijl, K.R. Westerterp

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Interfacial areas and gas hold-ups were determined at pressures of up to 1.7 MPa in a glass vessel, 88 mm in diameter and of standard geometry. Superficial gas velocities between 0.25 and 2.0 cm/s were used and the stirring speed varied between 4 and 30 rps. The interfacial areas were determined by the chemical method, using the model reaction between CO2 and aqueous diethanolamine (DEA). Hold-ups were determined by observation of differences in height. In contrast to literature indications, the gas hold-up was found to be independent of reactor pressure. This is also true for the interfacial area.
Original languageUndefined
Pages (from-to)1-10
JournalChemical engineering and technology
Issue number1
Publication statusPublished - 1988


  • IR-70855

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