Enrichment of polymeric WOx species in WOx@SnO2 catalysts for ultra-deep oxidative desulfurization of liquid fuels

Fuel ◽  
2021 ◽  
Vol 290 ◽  
pp. 120036
Author(s):  
Antony Rajendran ◽  
Hong-Xia Fan ◽  
Tian-You Cui ◽  
Jie Feng ◽  
Wen-Ying Li
Keyword(s):  
Oxidative Desulfurization ◽  
Liquid Fuels

scholarly journals Efficient H2O2/CH3COOH oxidative desulfurization/denitrification of liquid fuels in sonochemical flow-reactors

2014 ◽  
Vol 21 (1) ◽  
pp. 283-288 ◽  
Author(s):  
Emanuela Calcio Gaudino ◽  
Diego Carnaroglio ◽  
Luisa Boffa ◽  
Giancarlo Cravotto ◽  
Elizabeth M. Moreira ◽  
...  
Keyword(s):  
Oxidative Desulfurization ◽  
Liquid Fuels ◽  
Flow Reactors

Polyoxometalates-Based Nanocatalysts for Production of Sulfur-Free Diesel

2016 ◽  
pp. 426-458
Author(s):  
Diana Julião ◽  
Susana Ribeiro ◽  
Baltazar de Castro ◽  
Luís Cunha-Silva ◽  
Salete S. Balula
Keyword(s):  
Hydrogen Peroxide ◽  
Scientific Community ◽  
Oxidative Desulfurization ◽  
Research Society ◽  
Liquid Fuels ◽  
Future Perspectives ◽  
Fuel Cost ◽  
Catalytic Systems

In the last decade, polyoxometalates have been demonstrated to be efficient catalysts for the activation of oxidants in desulfurization processes. Successful results on desulfurization using polyoxometalates and hydrogen peroxide to desulfurize model oils and liquid fuels were reported and can be found in the literature. The desulfurization is an actual subject with notable interest for refineries and fuel cost, and consequently it is important to focus the scientific community to work in desulfurization technology in order to develop catalytic systems based on polyoxometalates capable to be reused, stable, efficient and selective. Therefore, the main goal is the design of heterogeneous polyoxometalate based catalysts. This chapter pretends to inform the research society about the scientific directions that have been taken using heterogeneous polyoxometalate catalysts in oxidative desulfurization of simulated and real liquid fuels. In addition, future perspectives are proposed to cover the actual needs of this area.

Deep oxidative desulfurization of liquid fuels

2014 ◽  
Vol 30 (4) ◽  
Author(s):  
Farouq S. Mjalli ◽  
Omar U. Ahmed ◽  
Talal Al-Wahaibi ◽  
Yahya Al-Wahaibi ◽  
Inas M. AlNashef
Keyword(s):  
Oxidative Desulfurization ◽  
Liquid Fuels

An overview of conventional and alternative technologies for the production of ultra-low-sulfur fuels

2019 ◽  
Vol 35 (6) ◽  
pp. 669-705 ◽  
Author(s):  
Prerana Sikarwar ◽  
Vijayalakshmi Gosu ◽  
Verraboina Subbaramaiah
Keyword(s):  
Operating Cost ◽  
Oxidative Desulfurization ◽  
Liquid Fuels ◽  
Valuable Insight ◽  
Alternative Technologies ◽  
Advantages And Disadvantages ◽  
Deep Desulfurization ◽  
Low Sulfur Content ◽  
Low Sulfur ◽  
Alternative Processes

Abstract Environmental concerns have given a great deal of attention for the production of ultra-low-sulfur fuels. The conventional hydrodesulfurization (HDS) process has high operating cost and also encounters difficulty in removing sulfur compound with steric hindrance. Consequently, various research efforts have been made to overcome the limitation of conventional HDS process and exploring the alternative technologies for deep desulfurization. The alternative processes being explored for the production of ultra-low-sulfur content fuel are adsorptive desulfurization (ADS), biodesulfurization (BDS), oxidative desulfurization (ODS), and extractive desulfurization (EDS). The present article provided the comprehensive information on the basic principle, reaction mechanism, workability, advantages, and disadvantages of conventional and alternative technologies. This review article aims to provide valuable insight into the recent advances made in conventional HDS process and alternative techniques. For deep desulfurization of liquid fuels, integration of conventional HDS with an alternative technique is also proposed.

scholarly journals WO3 and Ionic Liquids: A Synergic Pair for Pollutant Gas Sensing and Desulfurization

Metals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 475 ◽  
Author(s):  
Francesca D’Anna ◽  
Maria Luisa Grilli ◽  
Rita Petrucci ◽  
Marta Feroci
Keyword(s):  
Ionic Liquids ◽  
Performance Enhancement ◽  
Gas Adsorption ◽  
Gas Sensing ◽  
Sulfur Removal ◽  
Oxidative Desulfurization ◽  
Catalytic Efficiency ◽  
Liquid Fuels ◽  
High Dispersion ◽  
Catalytic Material

This review deals with the notable results obtained by the synergy between ionic liquids (ILs) and WO3 in the field of pollutant gas sensing and sulfur removal pretreatment of fuels. Starting from the known characteristics of tungsten trioxide as catalytic material, many authors have proposed the use of ionic liquids in order to both direct WO3 production towards controllable nanostructures (nanorods, nanospheres, etc.) and to modify the metal oxide structure (incorporating ILs) in order to increase the gas adsorption ability and, thus, the catalytic efficiency. Moreover, ionic liquids are able to highly disperse WO3 in composites, thus enhancing the contact surface and the catalytic ability of WO3 in both hydrodesulfurization (HDS) and oxidative desulfurization (ODS) of liquid fuels. In particular, the use of ILs in composite synthesis can direct the hydrogenation process (HDS) towards sulfur compounds rather than towards olefins, thus preserving the octane number of the fuel while highly reducing the sulfur content and, thus, the possibility of air pollution with sulfur oxides. A similar performance enhancement was obtained in ODS, where the high dispersion of WO3 (due to the use of ILs during the synthesis) allows for noteworthy results at very low temperatures (50 °C).

Mechanistic Features of Ultrasound-Assisted Oxidative Desulfurization of Liquid Fuels

2012 ◽  
Vol 51 (29) ◽  
pp. 9705-9712 ◽  
Author(s):  
Manohar Kumar Bolla ◽  
Hanif A. Choudhury ◽  
Vijayanand S. Moholkar
Keyword(s):  
Oxidative Desulfurization ◽  
Liquid Fuels ◽  
Ultrasound Assisted

scholarly journals Ultrasound-Assisted Oxidative Desulfurization/Denitrification of Liquid Fuels with Solid Oxidants

2014 ◽  
Vol 28 (3) ◽  
pp. 1854-1859 ◽  
Author(s):  
Diego Carnaroglio ◽  
Emanuela Calcio Gaudino ◽  
Stefano Mantegna ◽  
Elizabeth M. Moreira ◽  
Antonio Vicente de Castro ◽  
...  
Keyword(s):  
Oxidative Desulfurization ◽  
Liquid Fuels ◽  
Ultrasound Assisted

Polyoxometalates-Based Nanocatalysts and Their Efficiency for Production of Sulfur-Free Diesel

2020 ◽  
pp. 92-133
Author(s):  
Diana Julião ◽  
Susana Ribeiro ◽  
Baltazar de Castro ◽  
Luís Cunha-Silva ◽  
Salete S. Balula
Keyword(s):  
Hydrogen Peroxide ◽  
Scientific Community ◽  
Oxidative Desulfurization ◽  
Research Society ◽  
Liquid Fuels ◽  
Future Perspectives ◽  
Fuel Cost ◽  
Catalytic Systems

Polyoxometalates have been demonstrated to be efficient catalysts for the activation of oxidants in desulfurization processes. Successful results on desulfurization using polyoxometalates and hydrogen peroxide to desulfurize model oils and liquid fuels were reported and can be found in the literature. The desulfurization is an actual subject with notable interest for refineries and fuel cost, and consequently, it is important to focus the scientific community to work in desulfurization technology in order to develop catalytic systems based on polyoxometalates capable to be reused, stable, efficient, and selective. Therefore, the main goal is the design of heterogeneous polyoxometalate based catalysts. This chapter pretends to inform the research society about the scientific directions that have been taken using heterogeneous polyoxometalate catalysts in oxidative desulfurization of simulated and real liquid fuels. In addition, future perspectives are proposed to cover the actual needs of this area.

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