Wednesday, May 8, 2013

Ultrasound-assisted oxidative desulfurization of bunker-C oil using tert-butyl hydroperoxide

Ultrasonics Sonochemistry, Available online 26 February 2013, In Press, Corrected Proof
Ultrasound-assisted oxidative desulfurization of bunker-C oil using tert-butyl hydroperoxide
Qiong Tang a, b, Song Lin b, c, Ying Cheng a, Sujun Liu a, Jun-Ru Xiong a
a Department of Chemistry and Life Science, Leshan Normal University, Leshan 614004, PR China
b Institute of Environmental Science and Engineering, Nanyang Technology University, Singapore 637723, Singapore
c Hydrochina Guiyang Engineering Corporation, Guiyang 550081, PR China
Abstract
Describes a study of the ultrasonic assisted oxidative desulfurization of bunker-C oil with TBHP/MoO3 system. Included in the investigation were the operational parameters for the desulfurization procedure, including ultrasonic irradiation time, ultrasonic wave amplitude, catalyst initial concentration and oxidation agent initial concentration were studied.
Results indicate that the existing oxidation system was very efficient for the desulfurization of bunker-C oil. It was dependent on operational parameters. The application of ultrasonic irradiation allowed sulfur removal in a shorter time. The stronger the solvent polarity is, the higher the sulfur removal rate.  However,the oil recovery rate is lower.
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