Immobilization of Acidic Ionic Liquid on Silica Gel for Catalytic Oxidative Desulfurization of Fuel Oils(II): Desulfurization

Abstract:

A series of highly dispersed ionic liquid catalysts were used for the oxidation desulfurization of dibenzothiophene (DBT) in model oil in the presence of H₂O₂. The effects of the loading of [BMIM]HSO₄ immobilized, reaction time, temperature, O/S molar ratio and the dosage of catalysts on DBT removal were investigated in detail. The catalyst with the loading of [BMIM]HSO₄ was 25% exhibited the highest activity. The DBT removal of model oil can reach 99.9% in 5 h at 60 °C, O/S molar ratio of 10, V_{model oil}=10mL, m_catalysts=2.00g. The catalysts can be easily recycled and can be recycled 2 times without a significant decrease in activity.

• Periodical: Advanced Materials Research (Volume 1090)
• Pages: 183-187
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1090.183
• Online since: February 2015
• Authors: Kai Peng Cheng, Hao Yang*, Jian Hong Wang, Hui Peng Liu, Cong Zhen Qiao
• Keywords: Catalytic Oxidation, Desulfurization, Silica Gel

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