Novel and simple one-pot method for the synthesis of TiO2 modified-CMK-3 applied in oxidative desulfurization of refractory organosulfur compounds

Fuel ◽  
2018 ◽  
Vol 226 ◽  
pp. 498-507 ◽  
Author(s):  
Lorena P. Rivoira ◽  
Brenda C. Ledesma ◽  
Juliana M. Juárez ◽  
Andrea R. Beltramone
Keyword(s):  
Oxidative Desulfurization ◽  
Organosulfur Compounds ◽  
One Pot

Deep Oxidative Desulfurization of Dibenzothiophene by Functional Tungsten-Containing Mesoporoussilica from Polyoxometalate-Based Salts

2014 ◽  
Vol 636 ◽  
pp. 93-96
Author(s):  
Ming Zhang ◽  
Wen Shuai Zhu ◽  
Meng Li ◽  
Yan An Li ◽  
Suhang Xun ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Organic Solvents ◽  
Room Temperature ◽  
Oxidative Desulfurization ◽  
Catalytic Performance ◽  
Sulfur Compounds ◽  
High Dispersion ◽  
One Pot ◽  
Tungsten Species

Tungsten-containing functional mesoporousW-SiO2 have been successfully synthesized by an one-pot and facile room-temperature procedure. These materials presented a high dispersion of tungsten species and excellent catalytic activity on the removal of sulfur compounds without any organic solvents as extractants. The catalytic performance on sulfur compounds was investigated in detail. After recycling for 8 times, the removal of the oxidation desulfurization system could still reach 92.0%.

Advances in Nanotechnology Transition Metal Catalysts in Oxidative Desulfurization (ODS) Processes

2016 ◽  
pp. 180-215 ◽  
Author(s):  
Raffaele Saladino ◽  
Giorgia Botta ◽  
Marcello Crucianelli
Keyword(s):  
Energy Efficiency ◽  
High Temperature ◽  
Environmental Impact ◽  
Aromatic Compounds ◽  
Oxidative Desulfurization ◽  
Transition Metal Catalysts ◽  
Organosulfur Compounds ◽  
Promising Alternative ◽  
Fuel Oils ◽  
Negative Environmental Impact

Organosulfur compounds show a negative environmental impact because of SOx emissions by combustion of fuel oils. As a consequence, removal of sulfur is becoming a worldwide challenge. The hydrodesulfurization (HDS) process achieves limited performances in the case of refractory S-containing aromatic compounds, such as thiophene and substituted benzothiophenes (BTs), which require highly energy-demanding conditions (high temperature and pressure conditions). Oxidative desulfurization (ODS) is considered the most promising alternative to HDS. During ODS treatment, the organosulfur compounds are oxidized to corresponding sulfoxides and sulfones, which can be successively removed by extraction with polar solvents. Different stoichiometric oxidants have been used in the ODS processes with a different degree of efficacy and environmental impact. The design and development of catalytic procedures can increase the ODS energy efficiency as well as make it more economical and environmentally acceptable. Here we describe the advances in nanostructured organometallic catalysis and biotechology applied to ODS treatment.

One-pot oxidative desulfurization of fuels using dual-acidic deep eutectic solvents

Fuel ◽  
2020 ◽  
Vol 265 ◽  
pp. 116967 ◽  
Author(s):  
Wei Liu ◽  
Tenghui Li ◽  
Guojia Yu ◽  
Jiangang Wang ◽  
Zhiyong Zhou ◽  
...  
Keyword(s):  
Oxidative Desulfurization ◽  
Deep Eutectic Solvents ◽  
One Pot

Heteropolyacids as effective catalysts to obtain zero sulfur diesel

2007 ◽  
Vol 79 (11) ◽  
pp. 1887-1894 ◽  
Author(s):  
Alberto de Angelis ◽  
Paolo Pollesel ◽  
Daniele Molinari ◽  
Wallace O'Neal Parker ◽  
Alessandra Frattini ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Sulfur Content ◽  
Catalytic Properties ◽  
Oxidative Desulfurization ◽  
Keggin Structure ◽  
Organosulfur Compounds ◽  
New Process ◽  
Desulfurization Process

This paper deals with the catalytic properties of different supported heteropolyacids (HPAs), both molybdenum- and tungsten-based, in the oxidative desulfurization process of diesel. We are jointly developing a new oxidative desulfurization process, aimed at reducing the sulfur content in diesel to less than 10 ppm (parts per million) using in situ produced peroxides. In this new process, high-molecular-weight organosulfur compounds, such as 4,6-dimethyl-dibenzothiophene (DMDBT), difficult to be eliminated by conventional hydrodesulfurization, are oxidized to the corresponding sulfones and subsequently removed by adsorption. Molybdenum-based HPAs, with Keggin structure, proved to be the most active and selective catalysts for oxidizing DMDBT with on-stream lifetimes exceeding 1500 h time on stream (t.o.s.).

Development of a Continuous Flow System for the Oxidative Desulfurization of Refractory Organosulfur Compounds in Hydrotreated Diesel

2013 ◽  
Vol 27 (12) ◽  
pp. 7714-7723 ◽  
Author(s):  
Adeniyi S. Ogunlaja ◽  
Ryan S. Walmsley ◽  
Carol du Sautoy ◽  
Nelson Torto ◽  
Zenixole R. Tshentu
Keyword(s):  
Continuous Flow ◽  
Flow System ◽  
Oxidative Desulfurization ◽  
Organosulfur Compounds ◽  
Continuous Flow System ◽  
Hydrotreated Diesel

Vanadium substituted heteropolyacids (H3+mPW12-mVmO40) encapsulated into Fe3O4@UiO-66 magnetic core-shell microspheres as brilliant catalysts for oxidative desulfurization under oxygen

2021 ◽  
Author(s):  
Chaowei Wang ◽  
Zhe Liu ◽  
Guangfa HU ◽  
Ruimin Gao ◽  
Jianshe Zhao
Keyword(s):  
Oxidative Desulfurization ◽  
Magnetic Core ◽  
Active Species ◽  
Core Shell ◽  
The Novel ◽  
One Pot ◽  
Keggin Type ◽  
Magnetic Fe3o4

In this study, the novel magnetic core-shell composites Fe3O4@UiO-66-HPA consisted of magnetic Fe3O4@UiO-66 and active species vanadium-substituted Keggin-type heteropolyacids supported by Zr-MOF were successfully prepared via one pot method and...

scholarly journals One-pot synthesis of cup-like ZSM-5 zeolite and its excellent oxidative desulfurization performance

RSC Advances ◽  
2018 ◽  
Vol 8 (56) ◽  
pp. 31979-31983 ◽  
Author(s):  
Yuan Zhang ◽  
Wei Zhang ◽  
Ju Zhang ◽  
Zhao Dong ◽  
Xiongfu Zhang ◽  
...  
Keyword(s):  
Single Crystals ◽  
Oxidative Desulfurization ◽  
One Pot ◽  
One Pot Synthesis

One-pot synthesis of small size cup-like hollow ZSM-5 single crystals and their oxidative desulfurization performance.

One-Pot Extraction and Oxidative Desulfurization of Fuels with Molecular Oxygen in Low-Cost Metal-Based Ionic Liquids

2017 ◽  
Vol 31 (2) ◽  
pp. 1376-1382 ◽  
Author(s):  
Chao Wang ◽  
Zhigang Chen ◽  
Wangqin Zhu ◽  
Peiwen Wu ◽  
Wei Jiang ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Molecular Oxygen ◽  
Low Cost ◽  
Oxidative Desulfurization ◽  
One Pot

Sulfur in Petroleum

2016 ◽  
pp. 1-52 ◽  
Author(s):  
Waqas Ahmad
Keyword(s):  
Ionic Liquids ◽  
Oxidative Desulfurization ◽  
Reactor Design ◽  
Organosulfur Compounds ◽  
Reaction Conditions ◽  
Adsorptive Desulfurization ◽  
Oxidative Desulphurization ◽  
Different Types ◽  
Desulfurization Process ◽  
Ultrasound Assisted

This chapter describes the occurrence of organosulfur compounds in petroleum, their detrimental effects and various techniques for removal of these compounds. The sole commercial desulfurization process i.e. HDS is broadly discussed in terms of reaction conditions, different types of catalysts used, reactor design and mechanistic pathways in the process. The shortcomings of HDS and needs for developing new desulfurization techniques is also described. Various newly developed research techniques for desulfurization are also discussed with their technical backgrounds, commercial overview, advantages and shortcomings in the light of literature reports. These techniques include, Adsorptive desulfurization, Bio-desulfurization, Precipitative desulfurization, and Oxidative desulfurization with its sub types like ODS using H2O2- Polyoxometalates (POM), ODS with Ionic liquids, Photo-oxidative desulphurization and Ultrasound Assisted ODS.

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