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.

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.

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

scholarly journals Zinc Acetate Immobilized on Mesoporous Materials by Acetate Ionic Liquids as Catalysts for Vinyl Acetate Synthesis

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Hang Xu ◽  
Tianlong Yu ◽  
Mei Li
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Vinyl Acetate ◽  
Silica Gel ◽  
Catalyst Activity ◽  
Catalyst Layer ◽  
Space Velocity ◽  
Molar Ratio ◽  
Vinyl Acetate Monomer ◽  
Adsorption Desorption

Ionic liquid containing active ingredient Zn(CH3COO)2was loaded in mesoporous silica gel to form supported ionic liquids catalyst (SILC) which was used to synthesize vinyl acetate monomer (VAM). SILC was characterized by1HNMR, FT-IR, TGA, BET, and N2adsorption/desorption and the acetylene method was used to evaluate SILC catalytic activity and stability in fixed reactor. The result shows that 1-allyl-3-acetic ether imidazole acetate ionic liquid is successfully fixed within mesoporous channel of silica gel. The average thickness of ionic liquid catalyst layer is about 1.05 nm. When the catalytic temperature is 195°C, the acetic acid (HAc) conversion is 10.9% with 1.1 g vinyl acetate yield and 98% vinyl acetate (VAc) selectivity. The HAc conversion is increased by rise of catalytic temperature and molar ratio of C2H2 : HAc and decreased by mass space velocity (WHSV). The catalyst activity is not significantly reduced within 7 days and VAc selectivity has a slight decrease.

Efficient pyridinium-based ionic liquid for deep oxidative desulfurization of model oil

2020 ◽  
Vol 310 ◽  
pp. 113146 ◽  
Author(s):  
Hosni Ahmed Elwan ◽  
Magdy T. Zaky ◽  
Amal S. Farag ◽  
Fathi S. Soliman ◽  
M. Ezel Dean Hassan
Keyword(s):  
Ionic Liquid ◽  
Oxidative Desulfurization ◽  
Model Oil

scholarly journals Desulfurization Performance of Choline Chloride-Based Deep Eutectic Solvents in the Presence of Graphene Oxide

Environments ◽  
2020 ◽  
Vol 7 (11) ◽  
pp. 97
Author(s):  
Chiau Yuan Lim ◽  
Mohd Faridzuan Majid ◽  
Sarrthesvaarni Rajasuriyan ◽  
Hayyiratul Fatimah Mohd Zaid ◽  
Khairulazhar Jumbri ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Oxidative Desulfurization ◽  
Deep Eutectic Solvents ◽  
Tetraethylene Glycol ◽  
Catalytic Oxidative Desulfurization ◽  
The One ◽  
Model Oil

Extractive catalytic oxidative desulfurization (ECODS) is the one of the recent methods used in fuel desulfurization which involved the use of catalyst in the oxidative desulfurization of diesel fuel. This study is aimed to test the effectiveness of synthesized choline chloride (ChCl) based deep eutectic solvent (DES) in fuel desulfurization via ECODS method, with the presence of graphene oxide (GO) as catalyst and hydrogen peroxide (H2O2) as oxidant. In this study, 16 DESs based on choline chloride were synthesized using glycerol (GLY), ethylene glycol (EG), tetraethylene glycol (TEG) and polyethylene glycol (PEG). The characterization of the synthesized DES was carried out via Fourier transform infrared spectroscopy (FTIR) analysis, density, and viscosity determination. According to the screening result, ChCl-PEG (1:4) was found to be the most effective DES for desulfurization using ECODS method, with a removal of up to 47.4% of sulfur containing compounds in model oil in just 10 min per cycle after the optimization of the reaction parameters, and up to 95% desulfurization efficiency could be achieved by six cycles of desulfurization. It is found that the addition of GO as catalyst does not increase the desulfurization performance drastically; hence, future studies for the desulfurization performance of DESs made up from ChCl and PEG and its derivatives can be done simply by using extraction desulfurization (EDS) method instead of ECODS method, for cost reduction purpose and easier regulation of DES waste into environment.

Oxidative desulfurization of dibenzothiophene using a catalyst of molybdenum supported on modified medicinal stone

RSC Advances ◽  
2016 ◽  
Vol 6 (21) ◽  
pp. 17036-17045 ◽  
Author(s):  
Lu Qiu ◽  
Yan Cheng ◽  
Chunping Yang ◽  
Guangming Zeng ◽  
Zhiyong Long ◽  
...  
Keyword(s):  
Oxidative Desulfurization ◽  
Catalytic Oxidative Desulfurization ◽  
Model Oil

In this paper, the performance of catalytic oxidative desulfurization from model oil was studied using a catalyst of molybdenum supported on modified medicinal stone (Mo/MMS).

Desulfurization from Gasoline by Polymer Resin at Room Temperature and Atmospheric Pressure

2011 ◽  
Vol 396-398 ◽  
pp. 1283-1286
Author(s):  
Jian Peng Zhu ◽  
Chun Hu Li ◽  
Jia Ling Chen ◽  
Ying Wei Luo
Keyword(s):  
Reaction Time ◽  
Sulfur Content ◽  
Atmospheric Pressure ◽  
Room Temperature ◽  
Oxidative Desulfurization ◽  
Sulfur Compounds ◽  
Molar Ratio ◽  
Reaction Conditions ◽  
Polymer Resin ◽  
Mild Conditions

Abstract. Investigation of polymer resin as catalyst in the oxidative desulfurization (ODS) process has revealed that the method can be applied to make a relative high removal of sulfur compounds. The reaction conditions, including temperature, amount of oxidant and reaction time were studied. The best result occurs under mild conditions with respect to room temperature and atmospheric pressure, to remove 75.54% of the totle sulfur content in the presence of H2O2 with an O/S molar ratio of 17. Possible mechanism is also disscussed.

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