CFD Simulation of SO2 Removal from Gas Mixtures using Ceramic Membranes
This work deals with modeling and simulation of SO2 removal in a ceramic membrane by means of FEM. A mass transfer model was developed to predict the performance of SO2 absorption in a chemical solvent. The model was based on solving conservation equations for gas component in the membrane. Computational fluid dynamics (CFD) of mass and momentum were used to solve the model equations. The simulations aimed to obtain the distribution of gas concentration in the absorption process. The effect of the operating parameters on the efficiency of the ceramic membrane was evaluated. The modeling findings showed that the gas phase velocity has significant effect on the removal of gas whereas the liquid phase does not affect the SO2 removal significantly. It is also indicated that the main mass transfer resistance is placed in the membrane and gas phase because of high tortuosity of the ceramic membrane.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1056328Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1878
 M├╝ller, H., 2005. Sulfur dioxide, in: Ullmann-s Encyclopedia of Industrial Chemistry. Wiley-VCH Verlag GmbH & Co.:Weinheim.
 Bekassy-Molnar, E., E. Marki and J.G. Majeed, 2005. Sulphur dioxide absorption in air-lift tube absorbers by sodium citrate buffer solution. Chemical Engineering and Processing, 44: 1039-1046.
 VanDam, M.H.H., A.S. Lamine, D. Roizard, P. Lochon and C. Roizard, 1997. Selective sulphur dioxide removal using organic solvents. Industrial and Engineering Chemistry Research, 36: 4628-4837.
 Dutta, B.K., M. Shyamal and R.K. Basu, 1996. Absorption of sulfur dioxide in aqueous dispersions of dimethyl aniline. Canadian Journal of Chemical Engineering, 74: 339-346.
 Gabelman, A., S.T Hwang, 1999. Hollow fiber membrane contactors. Journal of Membrane Science, 159: 61-106.
 Qi, Z. and E.L. Cussler, 1985. Microporous hollow fibers for gas absorption. Journal of Membrane Science, 23: 321-345.
 Kreulen, H., C.A. Smolders, G.F. Versteeg and W.P.M. Van Swaaij, 1993. Microporous hollow fiber membrane modules. Industrial and Engineering Chemistry Research, 32: 674-684.
 Luis, P., A. Garea, A. Irabien, 2010. Modelling of a hollow fibre ceramic contactor for SO2 absorption. Separation and Purification Technology, 72: 174-179.
 Luis, P., A. Garea and A. Irabien, 2009. Zero solvent emission process for sulfur dioxide recovery using a membrane contactor and ionic liquids. Journal of Membrane Science, 330: 80-89.
 Shirazian, S., A. Moghadassi, S. Moradi, 2009. Numerical simulation of mass transfer in gas-liquid hollow fiber membrane contactors for laminar flow conditions. Simulation Modelling Practice and Theory, 17: 708-718.
 Happel, J., 1959. Viscous flow relative to arrays of cylinders. AIChE Journal, 5: 174-177.
 Bird, R.B., W.E. Stewart and E.N. Lightfoot, 2002. Transport Phenomena. 2nd edition, John Wiley & Sons: New York.