A comprehensive review on oxidative desulfurization catalysts targeting clean energy and environment

Antony, R.; Cui, Tian-You; Fan, Hongxia; Yang, Zhi-fen; Feng, Jie

doi:10.1039/c9ta12555h

Cited by 302 publications

(151 citation statements)

References 496 publications

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“…Issues associated with ODS, such as lack of oxidant selectivity, unwanted side reactions, undesirable residual S-containing aromatic moieties due to incorrect choice of extraction solvent, and high cost, are carefully weighed against the benefits linked with this process that cannot be achieved in conventional HDS process. For more information, we direct our readers to some new reviews that have appeared in literature focusing on ODS catalysts for clean environment, ODS of heavy oils with high sulfur contents, ODS using heteropolyacid-based catalysts, and ultrasound assisted ODS of hydrocarbon fuels [ 63 , 64 , 65 , 66 , 67 ].…”

Section: Strategies To Desulfurize Fuelmentioning

confidence: 99%

Recent Advances in Functionalized Mesoporous Silica Frameworks for Efficient Desulfurization of Fuels

Mendiratta

Ali

2020

Nanomaterials

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Considerable health and climate benefits arising from the use of low-sulfur fuels has propelled the research on desulfurization of fossil fuels. Ideal fuels are urgently needed and are expected to be ultra-low in sulfur (10–15 ppm), with no greater than 50 ppm sulfur content. Although several sulfur removal techniques are available in refineries and petrochemical units, their high operational costs, complex operational needs, low efficiencies, and higher environmental risks render them unviable and challenging to implement. In recent years, mesoporous silica-based materials have emerged as promising desulfurizing agents, owing to their high porosity, high surface area, and easier functionalization compared to conventional materials. In this review, we report on recent progress in the synthesis and chemistry of new functionalized mesoporous silica materials aiming to lower the sulfur content of fuels. Additionally, we discuss the role of special active sites in these sorbent materials and investigate the formulations capable of encapsulating and trapping the sulfur-based molecules, which are challenging to remove due to their complexity, for example the species present in JP-8 jet fuels.

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Section: Strategies To Desulfurize Fuelmentioning

confidence: 99%

Recent Advances in Functionalized Mesoporous Silica Frameworks for Efficient Desulfurization of Fuels

Mendiratta

Ali

2020

Nanomaterials

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“…But SO x is obtained due to contamination of the fuel itself, and, accordingly, these impurities in some cases can (and should) be removed before burning; for this, hydrodesulfurization (HDS) processes at petroleum refineries are used. The permissible amount of sulfur compounds in diesel, gasoline, and kerosene is subject to stringent international standards [47,48].…”

Section: So X Abatement Technologiesmentioning

confidence: 99%

“…Several methods have been studied to reduce SO x emissions. One of the most important is the process of sulfur removal from oil products, introduced in the world [47,48]. The results achieved have significantly reduced SO x emissions, so gasoline engines currently pollute the atmosphere to a minimum.…”

Section: So X Scrubber Technologymentioning

confidence: 99%

Materials for CO2, SOx, and NOx Emission Reduction

Shelyapina

Rodrı́guez-Iznaga

Petranovskii

2020

Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications

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Industrial development and urbanization require effective constant monitoring and effective removal of major air pollutants. Three of them, the fight against which is discussed in this chapter, appear in the process of burning fuel, although their genesis is different. Sulfur oxide is formed as a result of the combustion of impurities either in hydrocarbons, and in this case, the fight against it should begin with a deep cleaning of the fuel, or by burning coal, and then you have to deal with the desulfurization of exhaust gases. Nitrogen oxide pollutants are formed at high temperatures from nitrogen present in the air, and purification, respectively, occurs in the exhaust gases of heat engines. Carbon dioxide is the main product of the combustion of any fuel and, accordingly, requires special methods for its removal. The environmental impact of these gases is also different. SO x and NO x are pollutants that form smog and acid rain. CO 2 is greenhouse gas, and its removal is becoming one of the main goals for climate stabilization. Given these differences, this review of existing materials and processes to eliminate the three main gaseous air pollutants has been made.

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“…Transition metal (Mo, Ti, V, W, etc.) composites have been widely studied as active phases in ODS for the removal of large molecular thiophenic compounds, such as dibenzothiophene and its alkyl derivatives [6,7]. However, Mo-, V-, and W-based catalysts are most commonly used with hydrogen peroxide as an oxidant, which causes a different layer to be formed from the fuel oil and requires the use of a co-solvent, acetonitrile in most cases.…”

Section: Introductionmentioning

confidence: 99%

Titanium-Modified MIL-101(Cr) Derived Titanium-Chromium-Oxide as Highly Efficient Oxidative Desulfurization Catalyst

Zhang

Sun

2020

Catalysts

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A titanium-chromium-oxide catalyst was prepared by a facile calcination of titanium-modified MIL-101(Cr). The resulting material, possessing a surface area of 60 m2 g−1 and a titania content of 50.0 wt%, can be directly used as the catalyst for oxidative desulfurization (ODS) reaction of dibenzothiophene (DBT). This novel ODS catalyst can remove 900 ppm sulfur-containing compounds in a reaction time of 30 min at 60 °C. The experimental results showed that the specific activity increased with the titanium content. The specific activity of the catalyst with 50%Ti reached 129 μmol/m2, which was much higher than that of reported Ti-based catalysts.

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A comprehensive review on oxidative desulfurization catalysts targeting clean energy and environment

Abstract: ODS catalysts that ensure clean energy without SOx emission during fuel combustion are comprehensively reviewed.

Cited by 302 publications

References 496 publications

Recent Advances in Functionalized Mesoporous Silica Frameworks for Efficient Desulfurization of Fuels

Recent Advances in Functionalized Mesoporous Silica Frameworks for Efficient Desulfurization of Fuels

Materials for CO2, SOx, and NOx Emission Reduction

Titanium-Modified MIL-101(Cr) Derived Titanium-Chromium-Oxide as Highly Efficient Oxidative Desulfurization Catalyst

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