Application of a Novel Nanocomposite for Desulfurization of a Typical Organo Sulfur Compound

Document Type: Research Article

Authors

Department of Chemistry, Islamic Azad University, Shahreza Branch, Shahreza, I.R. IRAN

Abstract

In this research, zeolite-TiO2 nanocomposite was prepared for degradation of dibenzothiophene as a typical aromatic organosulfur compound of transportation fuels.The synthesized TiO2 was immobilized on the surface of clinoptilolite by Solid State Dispersion (SSD) method. The nanocomposite was then characterized by XRD, FTIR, TEM and SEM techniques. Photodegradation of dibenzothiophene in n-hexane solution by the prepared photocatalyst was then studied under different experimental conditions. The reaction products were identified by GC and GC-MS techniques. The  removal of degradation products from the solution was examined by β- zeolite. The results showed that under optimized conditions, the photocatalyst was able to degrade %88 of dibenzothiophene and that the degradation products were adsorbed by β-zeolite so that the remaining solution was deeply desulfurized. It was also concluded that the kinetics of the reaction was first order.

Keywords

Main Subjects


[1] Li Y., Zhao D., Lin J., Yuan Q., Preliminary Study on Oxidative Desulfurization of Diesel via Power Ultrasound, Energy. Sources, A., 31, p. 191 (2009).

[2] Wen Y., D. Tianping, D, Low Sulfur Automobile Fuel and Answering Measure, Chem. Eng. Oil Gas., 31, p. 31 (2002).

[3] Takbiri M., Mohammadi T., Pak A., Separation of Sulfur Compound from Gasoline by Evaporational Diffusion, Nashrieh Shimi va Mohandesi Shimi Iran (NSMSI), 31(1), p. 1 (2012). [in Persian]

[4] Chao Y., Li H., Zhu W., Zhu G., Yan Y., Deep Oxidative Desulfurization of Dibenzothiophene in simulated Diesel with Tungstate and H2O2 in Ionic Liquids, Petrol. Sci. Tech., 28, p. 1242 (2010).

[5] Eber J., Wasserscheid P., Deep Desulfurization of Oil Refinery Streams by Extraction with Ionic Liquids, A. Jess. Green Chem., 6, p. 316 (2004).

[6] Huang D., Wang Y.J., Yang L.M., Luo G.S., Chemical Oxidation of Dibenzothiophene with a Directly Combined Amphiphilic Catalyst for Deep Desulfurization, Ind. Eng. Chem. Res., 45, p. 1880 (2006).

[7] Mei H., Mei B.W., Yen T.F.A., A New Method for Obtaining Ultralow Sulfur Diesel Fuel via Ultrasound Assisted Oxidative Desulfurization, Fuel, 82, p. 405 (2003).

[8] Zaki E., Abdallah A., Baoshan L.. Tufail Shah A., Synthesis of Ordered Mesoporous W/ MCM - 41 and Its Catalytic Performance in Oxidative Desulfurization of Dibenzothiophene, Chem. Technol., 14, p. 1 (2010).

[9] Ma X.L., Velu S., Kim J.H., Song C.S., Deep Desulfurization of Gasoline by Selective Adsorption over Solid Adsorbents and Impact of Analytical Methods on ppm-Level Sulfur Quantification for Fuel Cell Application, Appl. Catal. B. 56, p. 137 (2005).

[10] Nazembokaee H., Vosooghi M., Alemzadeh I., Desulfurizatio of Gasoil by Rhodococcus P32 C1 Bactery Immobilized on Polymeric Substrate, Nashrieh Shimi va Mohandesi Shimi Iran (NSMSI), 25(3), p. 1 (2002). [in Persian]

[11] Zhao D., Sun Z., Li F., Shan H., Optimization of Oxidative Desulfurization of Dibenzothiophene Using a Coordinated Ionic Liquid as Catalytic Solvent, Pet. Sci . Technol., 27, p. 1907 (2009).

[12] Filippis P.D., Scarcella M., Fuctionalized Hexagonal Mesoporous Silica as an Oxidizing Agent for the Oxidative Desulfurization of Organ Compounds, Ind. Eng. Chem. Res., 47, p. 973 (2008).

[13] Su C., Hong B.Y., Sol-Ggel Preparation and Photocatalysis of Titanium Dioxide, C.-M. Tseng, Catal. Today., 96, p. 119 (2004).

[14] Li F., Sun Sh., Jiang Y., Xia M., Sun M., Photodegradation of an Azo Dye Using Immobilized Nanoparticles of TiO2 Supported by Natural Porous Mineral, B. Xue, J. Hazard. Mater. 152, p. 1037 (2008).

[15] Bouzaza A., Laplanche A., Photocatalytic Degradation of Toluene in the Gas Phase: Comparative Study of Some TiO2 Supports, J. Photochem. Photobiol. A: Chem., 150, p. 207 (2002).

[16] Shimizu K., Kaneko T., Fujishima T., Kodama T., Yoshida H., Kitayama Y., Selective Oxidation of Liquid Hydrocarbons over Photoirradiated TiO2 Pillared Clays, Appl. Catal. A: Gen., 225, p. 158 (2002).

[17] Mahmoodi N.M., Arami M., Limaee N.Y., Gharanjig K., Bulk Phase Degradation of Acid Red 14 by Nanophotocatalysis Using Immobilized Titanium (IV) Oxide Nanoparicles, J. Hazard. Matter., 145, p. 65 (2007).

[18] Anandan S., Yoon M., Photocatalytic Activities of the Nano-Sized TiO2 Supported Y-Zeolites, J. Photochem. Photobiol. C: Photochem. Res., 4, p. 5 (2003).

[19] Ji Z.Y., Yuan J.S., Li X.G., Removal of Ammonium from Wastewater Using Calcium form Clinoptilolite, J. Hazard. Mater., 141, p. 483 (2007).

[20] Olad A., Naseri B., Preparation Characterization and Anticorrosive Properties of a Novel Polyaniline/ Clinoptilolite Nanocomposite, Prog. Org. Coat., 67, p. 233 (2010).

[21] Mahshid S., Askari M., Sasani Ghamsari M., Synthesis of TiO2 Nanoparticles by Hydrolysis and Peptization of Titanium Isopropoxide Solution,. J. Mater. Process. Technol., 189, p. 296 (2007).

[22] Nikazar M., Gholivand Kh., Mahanpoor K., Photocatalytic Degradation of Azo Dye Acid Red 114 in Water with TiO2 Supported on Clinoptilolite as a Catalyst, J. Deasalination., 219, p. 93 (2008).

[23] Nikazar M., Gholivand Kh., Mahanpoor K., Using TiO2 Supported on Clinoptilolite as a Catalyst for Photocatalytic Degradation of Azo Dye Disperse Yellow 23 in Water, Kinet. Catal., 48, p. 214 (2007).

[24] Nikazar M., Gholivand Kh., Mahanpoor K., Enhancement of Photocatalytic Efficiency of TiO2 by Supporting on Clinoptilolite in the Decolorization of Azo Dye Direct Yellow 12 Aqueous Solution, J. Chin. Chem. Soc., 54, p. 1261 (2007).

[25] Li F., Jing Y., Yu L., Yang Z., Shenmei Sun T.H., Surface Effect of Natural Zeolite (Clinoptilolite) on the Photocatalytic of TiO2, Appl. Surf. Sci., 252, p. 1410 (2005).

[26] Bahnemann W., Muneer M., Haque M.M., Titanium Dioxide-Mediated Photocatalysed Degradation of Few Selected Organic Pollutants in Aqueous Suspensions, Catal. Today., 124, p. 133 (2007).