Study of mass transfer of VOCs into viscous solvents in a pilot-scale cables-bundle scrubber |
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| Authors: | D. Bourgois J. Vanderschuren D. Thomas |
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| Affiliation: | Faculté Polytechnique de Mons, Chemical Engineering Department, Rue de l’Epargne, 56, 7000 Mons, Belgium;Department of Mechanical Engineering, Akita University, Tegata-Gakuen 1-1, Akita 010-8502, Japan;Advanced Center of Research in High Energy Materials (ACRHEM), University of Hyderabad, Hyderabad 500046, India;Department of Chemical Engineering, Institute of Chemical Technology, Prague, Technická 5, 166 28 Praha 6, Czech Republic;School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, PR China;Rio Tinto Centre for Advanced Mineral Recovery, Department of Earth Science and Engineering, Imperial College London, London SW7 2AZ, United Kingdom |
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| Abstract: | ![]()
A widely operated way to treat industrial air loaded with VOCs is the absorption technique. For this, the choice of a well-adapted solvent is obviously of prime importance. In the present work an absorption process using viscous organic absorbents, namely, phthalates was studied to scrub flue gases. A suitable thin film device, the cables-bundle contactor, was applied both to favor mass transfer and to limit the pressure drops, and various experiments were achieved at the pilot-scale. Correlations predicting hydrodynamic and mass transfer parameters (interfacial area, liquid hold-up, liquid phase mass transfer coefficients) essential for the design of industrial absorption units, were deduced from experimental results. A comparison of performances of the cables contactor and a packed bed scrubber of same void fraction was made for absorption of toluene into DEHP. |
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