Investigation of natural gas sweetening process in corrugated packed bed column using computational fluid dynamics (CFD) model

作者: Mohammad Reza Rahimpour , Majid Saidi , Majid Baniadam , Mahboubeh Parhoudeh

DOI: 10.1016/J.JNGSE.2013.10.003

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摘要: Abstract In this work, a mathematical model based on computational fluid dynamics (CFD) is developed for absorption of acid gases, H 2 S and CO , into amine solution in structured packing with corrugated sheets. Localization boundary conditions hydrodynamic the are similar to work Shilkin. Two-dimensional mass energy transfer equations incorporation chemical reactions between amines gases moving liquid gas cylindrical coordinate system channels produced from counter course assembling Solution governing conservation concepts provides temperature concentration profiles along bed height across reacting film. Since methyl diethanol (MDEA) selectively absorbs presence maintain generality model, it extended investigate removal mixture mono ethanol (MEA) or (DEA) MDEA solutions. Structured packed column shows better performance comparison random at equal diameter. column, MEA be more efficient DEA.

参考文章(29)
Ross Taylor, R. Krishna, Multicomponent mass transfer ,(1993)
P. Keshavarz, J. Fathikalajahi, S. Ayatollahi, Analysis of CO2 separation and simulation of a partially wetted hollow fiber membrane contactor Journal of Hazardous Materials. ,vol. 152, pp. 1237- 1247 ,(2008) , 10.1016/J.JHAZMAT.2007.07.115
J.L. de Paiva, G.C. Kachan, Absorption of nitrogen oxides in aqueous solutions in a structured packing pilot column Chemical Engineering and Processing. ,vol. 43, pp. 941- 948 ,(2004) , 10.1016/J.CEP.2003.08.005
J. Antonio Rocha, Jose L. Bravo, James R. Fair, Distillation Columns Containing Structured Packings: A Comprehensive Model for Their Performance. 2. Mass-Transfer Model Industrial & Engineering Chemistry Research. ,vol. 35, pp. 1660- 1667 ,(1996) , 10.1021/IE940406I
L. Spiegel, W. Meier, Distillation Columns with Structured Packings in the Next Decade Chemical Engineering Research & Design. ,vol. 81, pp. 39- 47 ,(2003) , 10.1205/026387603321158177
A. Shilkin, E. Y. Kenig, Z. Olujic, Hydrodynamic‐analogy‐based model for efficiency of structured packing columns Aiche Journal. ,vol. 52, pp. 3055- 3066 ,(2006) , 10.1002/AIC.10937
Sanat Shetty, Ramon L. Cerro, Fundamental Liquid Flow Correlations for the Computation of Design Parameters for Ordered Packings Industrial & Engineering Chemistry Research. ,vol. 36, pp. 771- 783 ,(1997) , 10.1021/IE960627J
Nadhir A. Al-Baghli, Steven A. Pruess, Victor F. Yesavage, M.Sami Selim, A rate-based model for the design of gas absorbers for the removal of CO2 and H2S using aqueous solutions of MEA and DEA Fluid Phase Equilibria. ,vol. 185, pp. 31- 43 ,(2001) , 10.1016/S0378-3812(01)00454-X
R. Taylor, H.A. Kooijman, J.-S. Hung, A second generation nonequilibrium model for computer simulation of multicomponent separation processes Computers & Chemical Engineering. ,vol. 18, pp. 205- 217 ,(1994) , 10.1016/0098-1354(94)85009-7
Elisabetta Brunazzi, Alessandro Paglianti, Liquid-Film Mass-Transfer Coefficient in a Column Equipped with Structured Packings Industrial & Engineering Chemistry Research. ,vol. 36, pp. 3792- 3799 ,(1997) , 10.1021/IE970045H