Adsorption of Light Hydrocarbons on LTA and FER Zeolites


This paper reports the results of an experimental study on adsorption of light hydrocarbons on small pore microporous materials. The choice of hydrocarbons studied was affected taking into consideration the application of adsorption processes in removal of light hydrocarbons from exhaust streams of the petrochemical industry and of light-duty gasoline vehicles under cold start conditions (C4-C5 paraffins and olefins). The materials investigated were 5A and Ferrierite zeolites, characterized by different pore opening and Si/Al ratio. Equilibrium isotherm curves at room temperature were determined by a gravimetric method on dehydrated zeolites, while breakthrough curves in dynamic tests were used to evaluate the adsorption properties of hydrated zeolites at low hydrocarbon partial pressure (0-1 kPa) and in experimental conditions close to those of a HC trap at the engine exhaust. The experimental results regarding the adsorption capacities were discussed with the aim to understand how the physico-chemical characteristics of the adsorbent material could affect its trapping capability in adsorbing different types of hydrocarbons.

Share and Cite:

F. Migliardini, F. Iucolano, D. Caputo and P. Corbo, "Adsorption of Light Hydrocarbons on LTA and FER Zeolites," American Journal of Analytical Chemistry, Vol. 4 No. 7A, 2013, pp. 109-114. doi: 10.4236/ajac.2013.47A015.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] F. Miano, “Adsorption of Hydrocarbon Vapour Mixtures onto Zeolite 5A,” Colloid Surface A: Physicochemical and Engineering Aspects, Vol. 110, No. 1, 1996, pp. 95-104. doi:10.1016/0927-7757(95)03439-0
[2] M. J. Ahmed, A. H. A. K. Mohammed and A. A. H. Kadhum, “Prediction of Multi Component Equilibrium Isotherms for Light Hydrocarbons Adsorption on 5A Zeolite,” Fluid Phase Equilibrium, Vol. 313, 2012, pp. 165-170. doi:10.1016/j.fluid.2011.10.008
[3] T. H. Yeon, H. S. Han, E. D. Park and J. E. Yie, “Adsorption and Desorption Characteristics of Hydrocarbons in Multi-Layered Hydrocarbon Traps,” Microporous and Mesoporous Materials, Vol. 119, 2009, pp. 349-355. doi:10.1016/j.micromeso.2008.10.036
[4] P. Eastwood, “Critical Topics in Exhaust Gas Aftertreatment,” Research Studies Press, Baldock, 2000.
[5] B. Puertolas, M. V. Navarro, J. M. Lopez, A. M. Mastral and T. Garcia, “Recent Solutions for the Abatement of Hydrocarbon Emissions during the Cold Start of Light Vehicles,” Recent Patents on Chemical Engineering, Vol. 4, No. 1, 2011, pp. 36-52.
[6] D. W. Breck, “Zeolite Molecular Sieves,” Krieger Publishing Company, Malabar, 1974.
[7] S. Boulard, P. Gilot, R. Brosius, D. Habermacher and J. A. Martens, “Perturbation and Tracer Chromatography Study of Hydrocarbon Adsorption from Simulated Exhaust Gas on Fe-MFI and MOR Type Zeolite Catalysts,” Topics in Catalysis, Vol. 30-31, No. 1-4, 2004, pp. 49-53. doi:10.1023/B:TOCA.0000029727.42532.0f
[8] J. H. Park, S. J. Park, I. S. Nam, G. K. Yeo, J. K. Kil and Y. K. Youn, “A Fast and Quantitative Assay for Developing Zeolite-Type Hydrocarbon Trap Catalyst,” Microporous and Mesoporous Materials, Vol. 101, No. 1-2, 2007, pp. 264-270. doi:10.1016/j.micromeso.2006.11.003
[9] P. Pantu, B. Boekfa and J. Limtrakul, “The Adsorption of Saturated and Unsaturated Hydrocarbons on Nanostructured Zeolites (H-MOR and H-FAU): An ONIOM Study,” Journal of Molecular Catalysis A: Chemical, Vol. 277, No. 1-2, 2007, pp. 171-179. doi:10.1016/j.molcata.2007.07.037
[10] L. Song, Z. Sun, L. Duan, J. Gui and G. S. McDougall, “Adsorption and Diffusion Properties of Hydrocarbons in Zeolites,” Microporous and Mesoporous Materials, Vol. 104, No. 1-3, 2007, pp. 115-128. doi:10.1016/j.micromeso.2007.01.015
[11] H. Jin, E. A. Prasetyanto, N. Jiang, S. M. Oh and S. E. Park, “Length Dependency of Hydrocarbon Adsorption on Nanostacked MFI Zeolite by Tracer Chromatography,” Applied Surface Science, Vol. 256, No. 17, 2010, pp. 5508-5512. doi:10.1016/j.apsusc.2009.12.125
[12] C. A. Grande, C. Gigola and A. E. Rodrigues, “Dsorption of Propane and Propylene in Pellets and Crystals of 5A, Zeolite,” Industrial & Engineering Chemistry Research, Vol. 41, No. 1, 2002, pp. 85-92. doi:10.1021/ie010494o
[13] Ch. Baerlocher, L. B. McCusker and D. H. Olson, Eds., “Atlas of Zeolite Framework Types,” 6th Revised Edition, Elsevier, Amsterdam, 2007.
[14] S. J. Gregg and K. S. W.Sing, “Adsorption, Surface Area and Porosity,” Academic Press Inc., San Diego, 1997.

Copyright © 2022 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.