Iranian Chemical Engineering Journal

Iranian Chemical Engineering Journal

Oxidative Desulfurization of H2O by Molybdenum@Nickel Nanoparticles

Document Type : Original Article

Authors
Tarbiat Modares University
Abstract
Sulfur content of under ground waters and waste waters from the refinerys should be reduced significantly before consumption. One remarkable process is Oxidative DeSulfurization. Sulfur compounds of the water transform to sulfones and then get out of solution as a steam. In this work, core-shell Nickel-Molybden nanoparticles with sizes ranging from 55 to 100 nm were synthesized using successive reduction method and then, were deposited on γ-alumina support using wet impregnation method. This catalyst was characterized by UV-vis, SEM, EDS, TEM and XRD analysis. ODS of water was conducted using the catalyst along with Hydrogen Peroxide as oxidant. 91.2% of sulfur content ,was removed from the water after 4 h of reaction at 60°C. The order of mentioned reaction was changeable between 1.01 and 1.27 , the rate constant changeable between 0.021 and 0.05 min-1 on different temperatures.Catalyst’s ability at 60°C got reduced about 30%, after two times of washing.
Keywords

 

[1]        Soholz, H. N., "Large SulfurBacteria and the Formation of Phosphorite", Science 307: pp. 416-418, (2005)
[2]        Babich, I. V., Moulijn, J. A., "Science and technology of novel processes for deep desulfurization of oil refinery streams: a review", Fuel, 82: pp. 607–631, (2003).
[3]      بزرگی، ب. "گوگردزدایی اکسایشی از سوخت مدل با استفاده از نانو ذرات هسته- پوستۀ نیکل- مولیبدن"، پایان‌نامۀ کارشناسی ارشد، دانشکدۀ فنی و مهندسی، دانشگاه تربیت مدرس، (1393).
[4]        Akbari,, A., Omidkhah, M., Toufighi Darian, J., "Preparation and Characterization of  Catalyst for Oxidative Desulfurization of Diesel using : Effect of Drying Method and Mo Loading", World Academy of Science, Engineering and Technology, 6: pp.259–262, (2006).
 
[5]        Ito, E., Van Veen, J. A. R., "On novel processes for removing sulphur from refinery streams", Catal. Today, 116(4): pp. 446–460, (2006).
[6]        Dehkordi, A. M., Kiaei, Z.and M. A., Sobati, "Oxidative desulfurization of simulated light fuel oil and untreated kerosene", Fuel Process. Technol., 90(3): pp. 435–445, (2009).
[7]        Wang, D., Xie, T., Li, Y., "Nanocrystals:
Solution-based synthesis and applications as nanocatalysts", Nano Res., 2(1): pp. 30–46, (2009).
[8]      ف. تاری،"تولید نانو ذرات هسته- پوستۀ نیکل- مولیبدن"، پایان‌نامۀ کارشناسی ارشد، دانشکده فنی و مهندسی، دانشگاه تربیت مدرس، (1389).
[9]      آ. صادقیان،"گوگردزدایی اکسایشی از گازوئیل با استفاده از نانو ذرات هسته- پوستۀ نیکل- مولیبدن"، پایان‌نامۀ کارشناسی ارشد، دانشکده فنی و مهندسی، دانشگاه تربیت مدرس، (1394).
[10]      Xu, W., Liew, K. Y., Liu, H., Huang, T., Sun, C., Zhao, Y., "Microwave-assisted synthesis of nickel nanoparticles", Mater. Lett., 62(17–18):
pp. 2571–2573, (2008).
[11]      Tari, F., Manteghian, M., Bozorgi, B., "Microwave-assisted synthesis of molybdenum oxide nanoparticles",Particle Science and Technology,
pp. 121-127, (2015).