Decomposition of Dibenzothiophene Sulfone over KF/MgO Catalysts 


Vol. 16,  No. 1, pp. 12-18, Mar.  2010


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  Abstract

The object of the present study is to apply KF/MgO catalysts to remove sulfur dioxide from dibenzothiophene sulfone, a by-product of oxidative desulfurization. Potassium fluoride was deposited via an impregnation method on MgO. The effects KF loading and calcination on the characteristics of the KF/MgO catalysts were investigated through the BET surface area, XRF, XRD, and temperature-programmed desorption of CO2. The catalytic performances of the samples were investigated during the decomposition of dibenzothiophene sulfone to biphenyl and sulfur dioxide gas. KF loaded on MgO prepared by the impregnation method showed high catalytic activities for the decomposition of dibenzothiophene sulfone. The higher activity of KF/MgO just dried at 373 K, avoiding the usual activation at high temperature, than that over the calcined catalyst is ascribed to increase of the amount of basic sites. The high basicity probably may be due to the coordinately unsaturated F-. The simply dried 10 % KF/MgO catalyst, without the usual activation at high temperature, showed the optimal catalytic properties.

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  Cite this article

[IEEE Style]

K. H, J. KE, J. SY, P. YK, J. JK, "Decomposition of Dibenzothiophene Sulfone over KF/MgO Catalysts," Clean Technology, vol. 16, no. 1, pp. 12-18, 2010. DOI: .

[ACM Style]

Kim H, Jeong KE, Jeong SY, Park YK, and Jeon JK. 2010. Decomposition of Dibenzothiophene Sulfone over KF/MgO Catalysts. Clean Technology, 16, 1, (2010), 12-18. DOI: .

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