Advances in New and Renewable Energy >
Benzothiophene Catalytic Oxidation Removal with Ti-MCM-41/Sodium Hypochlorite in Model Oil
Received date: 2015-11-27
Revised date: 2015-12-23
Online published: 2016-02-28
Mesoporous molecular sieve Ti-MCM-41 was synthesized by hydrothermal method and characterized by using X ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), UV-Vis diffuse reflectance spectroscopy (UV-vis DR) and BET nitrogen adsorption desorption isotherm method. The catalytic oxidation reaction conditions and the kinetic parameters were investigated with Ti-MCM-41/NaClO as catalytic oxidant in the model oil consisting of n-heptane and benzothiophene. The results suggested that the sulfur removal rate was 68% under reaction temperature of 308 K, reaction time of 40 min, NaClO dosage of 3 mL, Ti-MCM-41 dosage of 0.05 g and extracting agent CH3CN dosage of 10 mL. The kinetic analysis indicated that showed benzothiophene oxidation reaction was a first-order reaction and the apparent activation energy (Ea) was 56.55 kJ/mol. The results showed that the Ti-MCM-41/NaClO wais effective in catalytic oxidation desulfurization.
Key words： Ti-MCM-41; catalytic oxidation; sodium hypochlorite; desulfurization; kinetics
YU Si-yu , PENG Jing , WANG Han-lu , MO Gui-di , YANG Xiao-yong . Benzothiophene Catalytic Oxidation Removal with Ti-MCM-41/Sodium Hypochlorite in Model Oil[J]. Advances in New and Renewable Energy, 2016 , 4(1) : 62 -67 . DOI: 10.3969/j.issn.2095-560X.2016.01.010
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