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Denny Vitasari
Publications
Presentations
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PhD Student
Start date: October 2010
Co-supervisor: Dr Paul Grassia
Project: Foam fractionation: A combined experimental and CFD simulation study
Sponsor: Indonesian Government
Email: Denny.Vitasari@postgrad.manchester.ac.uk
Education:
Master of Engineering Science, Monash University, Australia
Field of Study: Pulp and Paper Technology
Bachelor of Engineering, Universitas Gadjah Mada, Indonesia
Field of Study: Chemical Engineering
Research project:
Foam fractionation has a potential to be a low-cost separation process. The
operation of foam fractionation is commonly carried out by bubbling gas from the bottom
of a column. As consequence, bubbles will move upward along the column. As
bubbles rise, surfactant will attach onto their surface. The principle of foam
separation is then based on adsorption of solute due to difference of surface
activity. Despite its broad application in industries, the operation of foam
fractionation column has not been extensively studied.
My research project will investigate the following areas:
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Characteristics of surfactant mass transfer between falling and rising liquid streams in a foam fractionation column
operating with reflux.
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Foam drainage characteristics of a foam fractionation column operating with reflux involving bubble collapse,
bursting and coalescence within the column.
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Kinetics of surfactant adsorption at the gas-liquid interfaces.
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CFD modelling of the system hydrodynamics coupled to the model of surfactant mass transfer.
Publications:
Vitasari, D, Nguyen, KL, Dang, V (2009). Mass transfer and thermodynamic aspects of sodium desorption from Eucalyptus kraft pulp by acidification using carbon dioxide. Chemical Engineering Journal, 151, 302-307.
[DOI:10.1016/j.cej.2009.03.008]
Presentations:
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