Multicomponent sorption of hexane isomers in zeolite BETA
作者： Alírio Egídio Rodrigues , Patrick Bárcia , José Silva , None
DOI: 10.1002/AIC.11233
关键词:
摘要: Breakthrough curves of single, binary, ternary, and quaternary mixtures hexane (C6) isomers n-hexane (nHEX), 3-methylpentane (3MP), 2,3-dimethylbutane (23DMB), 2,2-dimethylbutane (22DMB) were performed in commercial pellets zeolite BETA (BEA structure), covering the temperature range between 423 523 K partial pressures up to 30 kPa. From these data, single multicomponent adsorption equilibrium isotherms collected. A tri-site Langmuir model (TSL) was developed interpret data based on considerations about structure, a dynamic tested predicting with good accuracy behavior fixed-bed experiments. At studied, sorption hierarchy is nHEX >>> 3MP > 23DMB >> 22DMB. BEA structure demonstrates significant selectivity C6 isomers, especially at low coverage, giving perspective regarding their separation by processes. © 2007 American Institute Chemical Engineers AIChE J,
up.pt
ipb.pt 
core.ac.uk 
sci-hub.se 参考文章(10)
Francisco A. Da Silva, José A. Silva, Alírio E. Rodrigues, A General Package for the Simulation of Cyclic Adsorption Processes Adsorption-journal of The International Adsorption Society. ,vol. 5, pp. 229- 244 ,(1999) , 10.1023/A:1008974908427
Patrick S. Bárcia, José A.C. Silva, Alírio E. Rodrigues, Adsorption equilibrium and kinetics of branched hexane isomers in pellets of BETA zeolite Microporous and Mesoporous Materials. ,vol. 79, pp. 145- 163 ,(2005) , 10.1016/J.MICROMESO.2004.10.037
G. Langer, A. Roethe, K.-P. Roethe, D. Gelbin, Heat and mass transfer in packed beds—III. Axial mass dispersion International Journal of Heat and Mass Transfer. ,vol. 21, pp. 751- 759 ,(1978) , 10.1016/0017-9310(78)90037-6
M. Schenk, S. L. Vidal, T. J. H. Vlugt, B. Smit, R. Krishna, Separation of Alkane Isomers by Exploiting Entropy Effects during Adsorption on Silicalite-1: A Configurational-Bias Monte Carlo Simulation Study Langmuir. ,vol. 17, pp. 1558- 1570 ,(2001) , 10.1021/LA001189V
R. Krishna, R. Baur, Modelling issues in zeolite based separation processes Separation and Purification Technology. ,vol. 33, pp. 213- 254 ,(2003) , 10.1016/S1383-5866(03)00008-X
B. Smit, R. Krishna, Molecular simulations in zeolitic process design Chemical Engineering Science. ,vol. 58, pp. 557- 568 ,(2003) , 10.1016/S0009-2509(02)00580-8
Patrick S. Bárcia, José A. C. Silva, Alírio E. Rodrigues, Separation by Fixed-Bed Adsorption of Hexane Isomers in Zeolite BETA Pellets Industrial & Engineering Chemistry Research. ,vol. 45, pp. 4316- 4328 ,(2006) , 10.1021/IE0513954
E. Jolimaitre, K. Ragil, M. Tayakout-Fayolle, C. Jallut, Separation of mono- and dibranched hydrocarbons on silicalite Aiche Journal. ,vol. 48, pp. 1927- 1937 ,(2002) , 10.1002/AIC.690480910
R. Krishna, T.J.H. Vlugt, B. Smit, Influence of isotherm inflection on diffusion in silicalite Chemical Engineering Science. ,vol. 54, pp. 1751- 1757 ,(1999) , 10.1016/S0009-2509(98)00538-7
K. Huddersman, M. Klimczyk, Separation of branched hexane isomers using zeolite molecular sieves Aiche Journal. ,vol. 42, pp. 405- 408 ,(1996) , 10.1002/AIC.690420210