Immobilization of Acidic Ionic Liquid in Silica Gel for Catalytic Oxidative Desulfurization of Fuel Oils(I): Preparation and Charaterization of Catalysts

2015 ◽  
Vol 1090 ◽  
pp. 178-182 ◽  
Author(s):  
Hao Yang ◽  
Jian Hong Wang ◽  
Peng Wang ◽  
Hua Ling Hu ◽  
Cong Zhen Qiao ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Silica Gel ◽  
Sol Gel ◽  
Oxidative Desulfurization ◽  
Acidic Ionic Liquid ◽  
Structures And Properties ◽  
Fuel Oils ◽  
Catalytic Oxidative Desulfurization ◽  
Highly Dispersed ◽  
Ft Ir

A series of highly dispersed ionic liquid catalysts were prepared by immobilized acidic ionic liquid [BMIM]HSO4 in silica gel through sol-gel methods. The structures and properties of the catalysts were characterized by FT-IR, SEM and XRD. The results showed the [BMIM]HSO4 had been successfully confined or encapsulated in a silica-gel matrix.

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

2015 ◽  
Vol 1090 ◽  
pp. 183-187 ◽  
Author(s):  
Kai Peng Cheng ◽  
Hao Yang ◽  
Jian Hong Wang ◽  
Hui Peng Liu ◽  
Cong Zhen Qiao
Keyword(s):  
Ionic Liquid ◽  
Reaction Time ◽  
Silica Gel ◽  
Oxidative Desulfurization ◽  
Molar Ratio ◽  
Acidic Ionic Liquid ◽  
Fuel Oils ◽  
Catalytic Oxidative Desulfurization ◽  
Highly Dispersed ◽  
Model Oil

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]HSO4immobilized, 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]HSO4was 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, Vmodeloil=10mL, mcatalysts=2.00g. The catalysts can be easily recycled and can be recycled 2 times without a significant decrease in activity.

Catalytic Oxidative Desulfurization of Model Fuel Using [HPMo][HTAC]2/SiO2 as a Amphiphilic Catalyst

2011 ◽  
Vol 396-398 ◽  
pp. 827-832 ◽  
Author(s):  
Qi Na Li ◽  
Guang Hui Wang ◽  
Jiang Hua Qiu ◽  
Ning Wang ◽  
Qi Gang Zhang ◽  
...  
Keyword(s):  
Sol Gel ◽  
Oxidative Desulfurization ◽  
Structure Parameters ◽  
Desulfurization Rate ◽  
Mesoporous Catalysts ◽  
Model Fuel ◽  
Catalytic Oxidative Desulfurization ◽  
Highly Dispersed ◽  
Ft Ir ◽  
Loading Amount

Mesoporous catalysts [HPMo][HTAC]2/SiO2 with different loading amount of [HPMo][HTAC]2 were prepared by sol–gel method. The catalysts were characterized by XRD, FT-IR, SEM and pore structure parameters. The catalytic activity for the oxidative desulfurization of benzothiophene (BT) and dibenzothiophene (DBT) was evaluated using hydrogen peroxide as an oxidant. Results of the charaterization show that the Keggin structures of all the loaded catalysts were kept and [HPMo][HTAC]2 was highly dispersed on the surface of SiO2. The desulfurization rate of the catalyst 20%[HPMo][HTAC]2/SiO2 can be up to 91% for DBT and 75% for BT in 2 h.

Oxidative Desulfurization of Diesel Fuel Using a Brønsted Acidic Ionic Liquid Supported on Silica Gel

2017 ◽  
Vol 31 (9) ◽  
pp. 10196-10205 ◽  
Author(s):  
Mahdieh Safa ◽  
Babak Mokhtarani ◽  
Hamid Reza Mortaheb ◽  
Kurosh Tabar Heidar ◽  
Ali Sharifi ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Silica Gel ◽  
Diesel Fuel ◽  
Oxidative Desulfurization ◽  
Acidic Ionic Liquid ◽  
Brønsted Acidic Ionic Liquid

Catalytic Oxidative Desulfurization of Gasoline Using Ionic Liquid Emulsion System

2011 ◽  
Vol 50 (24) ◽  
pp. 13686-13692 ◽  
Author(s):  
Jianhua Ge ◽  
Yuming Zhou ◽  
Yong Yang ◽  
Mengwei Xue
Keyword(s):  
Ionic Liquid ◽  
Oxidative Desulfurization ◽  
Emulsion System ◽  
Catalytic Oxidative Desulfurization ◽  
Liquid Emulsion

Preparation and Catalytic Performance of the Porous Polysulfone Microspheres Enabled by Immobilized Ionic Liquids for Esterification

2018 ◽  
Vol 1145 ◽  
pp. 90-94
Author(s):  
Yong Dong Zhao ◽  
Zhi Ping Zhao ◽  
Shuo Li ◽  
Peng Lu
Keyword(s):  
Ionic Liquid ◽  
Covalent Bond ◽  
Catalytic Performance ◽  
Inversion Method ◽  
Structure And Property ◽  
Porous Microspheres ◽  
H Nmr ◽  
Acidic Ionic Liquid ◽  
Ft Ir ◽  
Phase Inversion Method

Chloromethylated polysulfone (PSF-Cl) porous microspheres were prepared with non-solvent induced phase inversion method for the immobilization of acidic ionic liquid ([MIMBS][HSO4]). FT-IR, SEM, and 1H-NMR were used to characterize the structure and property of polysulfone porous microsphere supported ionic liquid (PSF-ILs). The results showed that acidic ionic liquid was supported onto the PSF-Cl porous microspheres by covalent bond. Furthermore, the catalyst exhibited a good catalytic activity with about 57% acetic acid conversion rate after 8h reaction. After the catalyst was reused for 7 times in the synthesis of ethyl acetate, the yield only decreased 6%.

Ionic liquid extraction and catalytic oxidative desulfurization of fuels using dialkylpiperidinium tetrachloroferrates catalysts

2014 ◽  
Vol 250 ◽  
pp. 48-54 ◽  
Author(s):  
Wei Jiang ◽  
Wenshuai Zhu ◽  
Yonghui Chang ◽  
Yanhong Chao ◽  
Sheng Yin ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Oxidative Desulfurization ◽  
Liquid Extraction ◽  
Catalytic Oxidative Desulfurization

Silica-gel Supported V Complexes: Preparation, Characterization and Catalytic Oxidative Desulfurization

2013 ◽  
Vol 21 (8) ◽  
pp. 860-866 ◽  
Author(s):  
Junbo LI ◽  
Xiwen LIU ◽  
Cancan CAO ◽  
Jia GUO ◽  
Zhiquan PAN
Keyword(s):  
Silica Gel ◽  
Oxidative Desulfurization ◽  
Catalytic Oxidative Desulfurization

A recyclable ionic liquid-oxomolybdenum(vi) catalytic system for the oxidative desulfurization of model and real diesel fuel

2016 ◽  
Vol 45 (38) ◽  
pp. 15242-15248 ◽  
Author(s):  
Diana Julião ◽  
Ana C. Gomes ◽  
Martyn Pillinger ◽  
Rita Valença ◽  
Jorge C. Ribeiro ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Catalytic System ◽  
Diesel Fuel ◽  
Oxidative Desulfurization ◽  
Catalytic Oxidative Desulfurization

The extractive and catalytic oxidative desulfurization (ECODS) of model and real diesel has been studied using the complex [MoO2Cl2(di-tBu-bipy)](1) (di-tBu-bipy = 4,4′-di-tert-butyl-2,2′-bipyridine) as a (pre)catalyst, aq. H2O2 as an oxidant, and either acetonitrile or an ionic liquid (IL) as a solvent and extractant.

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