Hydrogen peroxide oxidative desulfurization of model diesel mixtures using azacrown ethers

2014 ◽  
Vol 54 (4) ◽  
pp. 316-322 ◽  
Author(s):  
E. V. Rakhmanov ◽  
S. V. Baranova ◽  
Zixiao Wang ◽  
A. V. Tarakanova ◽  
S. V. Kardashev ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Oxidative Desulfurization ◽  
Azacrown Ethers ◽  
Model Diesel

Extraction Coupled with Aerobic Oxidative Desulfurization of Model Diesel Using a B-type Anderson Polyoxometalate Catalyst in Ionic Liquids

2019 ◽  
Vol 149 (7) ◽  
pp. 1888-1893 ◽  
Author(s):  
Lulu Sun ◽  
Ting Su ◽  
Pengcheng Li ◽  
Jiajia Xu ◽  
Naimeng Chen ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Oxidative Desulfurization ◽  
Model Diesel

scholarly journals Membrane-Supported Layered Coordination Polymer as an Advanced Sustainable Catalyst for Desulfurization

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2404
Author(s):  
Fátima Mirante ◽  
Ricardo F. Mendes ◽  
Rui G. Faria ◽  
Luís Cunha-Silva ◽  
Filipe A. Almeida Paz ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Oxidative Desulfurization ◽  
Liquid System ◽  
Catalytic Membrane ◽  
Extraction Solvent ◽  
Acrylic Glass ◽  
Drying Procedures ◽  
Cost Efficient ◽  
Model Diesel ◽  
Reaction Cycles

The application of a catalytic membrane in the oxidative desulfurization of a multicomponent model diesel formed by most refractory sulfur compounds present in fuel is reported here for the first time. The catalytic membrane was prepared by the impregnation of the active lamellar [Gd(H4nmp)(H2O)2]Cl·2H2O (UAV-59) coordination polymer (CP) into a polymethyl methacrylate (PMMA, acrylic glass) supporting membrane. The use of the catalytic membrane in the liquid–liquid system instead of a powder catalyst arises as an enormous advantage associated with the facility of catalyst handling while avoiding catalyst mass loss. The optimization of various parameters allowed to achieve a near complete desulfurization after 3 h under sustainable conditions, i.e., using an aqueous H2O2 as oxidant and an ionic liquid as extraction solvent ([BMIM]PF6, 1:0.5 ratio diesel:[BMIM]PF6). The performance of the catalytic membrane and of the powdered UAV-59 catalyst was comparable, with the advantage that the former could be recycled successfully for a higher number of desulfurization cycles without the need of washing and drying procedures between reaction cycles, turning the catalytic membrane process more cost-efficient and suitable for future industrial application.

Synthesis of phosphomolybdic acid/nanocrystalline titanium silicalite-1 catalyst in the presence of hydrogen peroxide for effective adsorption-oxidative desulfurization

2022 ◽  
Author(s):  
Siyue Wang ◽  
Tong Huan ◽  
Haonan Li ◽  
Xin Shi ◽  
Di Liu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Oxidative Desulfurization ◽  
Phosphomolybdic Acid ◽  
Impregnation Method ◽  
Titanium Silicalite ◽  
Nanocrystalline Titanium

The phosphomolybdic acid (HPMo) supported on microporous nanocrystalline titanium silicalite-1 zeolite (Nano-TS-1) catalysts were prepared in the absence or presence of hydrogen peroxide via the impregnation method. The catalysts were...

scholarly journals Oxidative desulfurization of dibenzothiophene catalyzed by peroxotungstate on functionalized MCM-41 materials using hydrogen peroxide as oxidant

2015 ◽  
Vol 36 (8) ◽  
pp. 1205-1213 ◽  
Author(s):  
Dong Xie ◽  
Qihui He ◽  
Yangyang Su ◽  
Tongwei Wang ◽  
Renfu Xu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Oxidative Desulfurization ◽  
Mcm 41

Oxidative desulfurization of dibenzothiophene and diesel by hydrogen peroxide: Catalysis of H3PMo12O40 immobilized on the ionic liquid modified SiO2

2018 ◽  
Vol 452 ◽  
pp. 93-99 ◽  
Author(s):  
Xuhe Li ◽  
Jian Zhang ◽  
Feng Zhou ◽  
Yanjuan Wang ◽  
Xingzhou Yuan ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Ionic Liquid ◽  
Oxidative Desulfurization

Iron Oxide Catalyst for Oxidative Desulfurization of Model Diesel Fuel

2020 ◽  
Vol 1010 ◽  
pp. 418-423
Author(s):  
Nor Atiq Syakila Mohd Nazmi ◽  
Wan Nazwanie Wan Abdullah ◽  
Farook Adam ◽  
Wan Nur Aini Wan Mokhtar ◽  
Noor Fatimah Yahaya ◽  
...  
Keyword(s):  
Iron Oxide ◽  
New Technology ◽  
Oxidative Desulfurization ◽  
Impregnation Method ◽  
X Ray ◽  
Diesel Fuels ◽  
Extraction Solvent ◽  
Tert Butyl Hydroperoxide ◽  
Catalytic Oxidative Desulfurization ◽  
Model Diesel

— The catalytic oxidative desulfurization (Cat-ODS) process has been introduced as a new technology to achieve ultra-low sulphur levels in diesel fuels. In this study, the performance of the alumina supported iron oxide based catalysts doped with cobalt, synthesized via wet impregnation method on the Cat-ODS of the model diesel with the total sulphur 500ppm was investigated using tert-butyl hydroperoxide (TBHP) as an oxidizing agent and N,N-dimethylformamide as an extraction solvent. A series of dopant was being screened. Co/Fe-Al2O3 (10:90) and Co/Fe-Al2O3 (20:80) prepared at 400°C. Overall, the catalytic activity decreased as dopant ratio increased. Catalyst with 10 wt% of Co was successfully removed 96% of thiophene, 100% of DBT and 92% of 4,6-DMDBT in model diesel. Further investigation, potential catalyst that calcined at 400°C contributed higher sulphur removal compared to the catalyst calcined at 500°C. X-ray diffraction analysis (XRD) result showed that Co/Fe-Al2O3 (10:90) prepared at 400°C was amorphous, while micrograph of the field emission scanning electron microscopy (FESEM) illustrated an inhomogeneous distribution of various particle sizes. The energy dispersive X-ray analysis (EDX) result have confirmed the presence of Fe and Co in all of the prepared catalyst.

Highly efficient mesoporous WO x /KIT-6 catalysts for oxidative desulfurization of dibenzothiophene with hydrogen peroxide

2018 ◽  
Vol 44 (6) ◽  
pp. 3687-3695 ◽  
Author(s):  
Zhenghua Li ◽  
Chengbin Li ◽  
Su Bin Park ◽  
Gyoung Hee Hong ◽  
Jin Seo Park ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Oxidative Desulfurization ◽  
Highly Efficient
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