Removal of Dibenzothiophene from Organic Medium by Modified Zeolite

Document Type: paper


Department of chemistry, Islamic Azad University, Shahreza Branch, Shahreza, Isfahan, Iran


In this research, adsorption of dibenzothiophene (DBT) as a model of sulfur containing material has been studied by Pb exchanged Y-zeolite under different experimental conditions. The adsorption was kinetically fast and high adsorption capacity was obtained. The equilibrium adsorption data were analyzed using Langmuir and Freunlich isotherm models. The corresponding parameters and correlation coefficients of each model are reported and the data was well fitted by the Langmuir isotherm. Pseudo-first order, pseudo-second order and intra-particle diffusion models were evaluated to examine the kinetic of the adsorption process. It was concluded that removal of DBT was obeys the second-order model of kinetic. The adsorbent was tested for five successive regeneration cycles and the considerable capacity of the adsorbent was remained after regeneration.     


[1] Nair, S. and Tatarchuk, B. (2010). “Supported silver adsorbents for selective removal of sulfur species from hydrocarbon fuels.” Fuel, Vol. 89, pp. 3218-3225.

[2] Babich, IV. and Moulijin, JA. (2003). “Science and technology of novel processes for deep desulfurization of oil refinery streams: a review.” Fuel, Vol. 82, pp. 607-631.

[3] Song, C. and Ma, X. (2003).  “New design approaches to ultra-clean diesel fuels by deep desulfurization and deep dearomatization.” Appl. Catal. B, Vol. 41, pp. 207-238.

[4] Song, C. (2003). “An overview of new approaches to deep desulfurization for ultra-clean gasoline, diesel fuel and jet fuel.” Catal. Today, Vol. 86, pp. 211-263.

[5] Hafizi-Atabak, H. R., Ghanbari- Tuedeshki, H., Shafaroudi, A., Akbari, M., Safaei-Ghomi, J.  and  Shariaty-Niassar, M. (2013).  “Production of Activated Carbon  from  Cellulose Wastes.” J.Chem. Petrol. Eng, Vol. 47, No.1, pp. 13-25.

[6] Teymouri, M., Samadi-Meybodi, A., Vahid, A. and Miranbeigi, A. A. (2013).“Adsorptive desulfurization of low sulfur diesel fuel using palladium containing  mesoporous silica synthesized via a novel in-situ approach.” Fuel Process Technol., Vol.116,  pp. 257-264.

[7] Wang, Y.,  Yang,  R.T.  and  Heinzel,  J.M.  (2008).  “Desulfurization  of  jet  fuel  by  π- complexation  adsorption  with  metal  halides  supported  on  MCM-41  and   SBA-15 mesoporous materials.” Chem. Eng. Sci., Vol.63, pp. 356-365.

[8] Wardencki, W. and Straszewski, R. (1974). “Dynamic adsorption of thiophenes, thiols and sulfides from n-heptane solutions on molecular sieve 13X.” J. Chromatogr., Vol.91, pp. 715–722.

[9] Sarda, K.K., Bhandari, A., Pant, K.K. and Jain, S. (2012).“Deep desulfurization of diesel fuel by selective adsorption over Ni/Al2O3 and Ni/ZSM-5 extrudates.” Fuel., Vol. 93, pp. 86-91.

[10]  Richardeau,  D.,  Joly,  G.,  Canaff,  C.,  Magnoux,  P.,  Guisnet,  M., Thomas,  M.  and Nicolaos, A. (2004). “Adsorption and reaction over HFAU zeolites of thiophene in liquid hydrocarbon solutions.” Appl. Catal. A-Gen., Vol. 263, pp. 49–61.

[11] Takahashi, A.  and  Yang,  R.T.  (2001).  “Cu(I)-Y-zeolite as  a superior  adsorbent  for diene/olefin separation.” Langmuir., Vol.17, pp.8405- 413.

[12] Hernandez-Maldonado, A. and Yang, R.T. (2003). “Desulfurization of commercial liquid fuels by selective adsorption via π -complexation with Cu-(I)-Y zeolite.” Ind. Eng. Chem. Res., Vol.42, pp. 3103-3110.

[13] Hernandez-Maldonado, A. and Yang, R.T. (2003). “Desulfurization of liquid fuels  by adsorption via π- complexation with Cu(I)-Y and Ag-Y zeolites.” Ind. Eng. Chem.  Res., Vol. 42, pp. 123–129.

[14] Hernandez-Maldonado,   A.J.,   Yang,   F.H.,   Qi,   G.S.   and   Yang,  R.T.  (2005). “Desulfurization of transportation fuels by π-complexation sorbents: Cu(I)-,  Ni(II)-, and Zn(II)zeolites.” Appl. Catal. B: Environ., Vol. 56, pp. 111–126.

[15] Song, H., Wan, X., Dai, M., Zhang, J., Li, F. and Song, H. (2013). “Deep desulfurization of model gasoline by selective adsorption over Cu–Ce bimetal ion-exchanged Y zeolite.” Fuel. Process. Technol.. Vol. 116, pp. 52-62.

[16] Ma, X.L., Sprague, M. and Song, C.S. (2005). “Deep desulfurization of gasoline  by selective adsorption over nickel-based adsorbent for  fuel cell applications.” Ind.  Eng. Chem. Res., Vol. 44, pp. 5768–5775.

[17] Velu, S., Song, C.S., Engelhard, M.H. and Chin, Y.-H. (2005). “Adsorptive removal of organic sulfur  compounds  from jet  fuel  over K-exchanged NiY  zeolites prepared  by impregnation and ion exchange.” Ind. Eng. Chem. Res. Vol. 44, pp. 5740–5749.

[18] Rico, M., Orza, J.M. and  Mocillo, J. (1965). “Fundamental vibrations of thiophene and its deuterated derivatives.” Spectrochim. Acta., Vol. 21, pp. 689 –719.

[19] Garcia, C.L. and  Lercher, J.A. (1992). “Adsorption and surface reactions of thiophene on ZSM 5 zeolites.” J. Phys. Chem. Vol. 96, pp. 26 69– 2675.

[20] Zhang, Z.Y., Shi, T.B., Jia, C.Z., Ji, W.J., Chen, Y. and He, M.Y. (2008). “Adsorptive removal of aromatic organosulfur compounds over the modified Na-Y  zeolites.” Appl. Catal. B: Environ., Vol. 82, pp. 1-10.

[21] Wang, J., Xu, F., Xie, W.-J., Mei, Z.-J., Zhang, Q.-Z., Cai, J. and Cai, W.-M.  (2009). “The enhanced adsorption of dibenzothiophene onto cerium/nickel-exchanged zeolite Y.” J.Hazard. Mater. Vol.163, pp. 538-543.

[22] Kalavathy, M.H., Karthikeyan, T., Rajgopal, S. and Miranda, L.R. (2005). “Kinetic and isotherm studies of Cu(II) adsorption onto H3PO4-activated rubber wood sawdust.”  J. Colloid Interface Sci. Vol. 292, pp. 354–362.

[23] Mittal, A., Kaur, D., Malviya, A., Mittal, J. and Gupta, V.K. (2009). “Adsorption studies on the removal of coloring agent phenol red from wastewater using waste  materials as adsorbents.” J. Colloid. Interf. Sci., Vol. 337, pp. 345–354.

[24] Kumar, Sh., Zafar, M., Prajapati, J.K., Kumar, S. and Kannepalli, S. (2011). “Modeling studies on simultaneous adsorption of phenol and resorcinol onto granular activated carbon from simulated aqueous solution.” J. Hazard. Mater. Vol. 185, pp. 287–294.

[25] Yaoa, Z.Y., Qib, J.H. and Wang, L.H. (2010). “Equilibrium, kinetic and thermodynamic studies on the biosorption of Cu(II) onto chestnut shell.” J. Hazard. Mater., Vol.174, pp. 137–143.

[26] Muzic, M., Sertic-Bionda, K., Gomzi, Z., Podolski, S. and Telen. S. (2010). “Study  of diesel fuel desulfurization by adsorption.” Chem. Eng. Res. Des., Vol. 88, pp.487-495.