Deep oxidative desulfurization of gasoline induced by PMoCu@MgCu2O4-PVA composite as a high-performance heterogeneous nanocatalyst

Rezvani, Mohammad Ali; Shaterian, Maryam; Akbarzadeh, Fereshteh; Khandan, Sahar

doi:10.1016/j.cej.2017.09.184

Cited by 91 publications

(47 citation statements)

References 25 publications

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“…After the addition of the nanocatalyst and oxidant, the oxidation reactions were performed in the interface of non‐polar/catalyst phase (Scheme ). The catalytic sulfur oxidation mechanism was well studied using POM‐based catalysts . In all cases, the metal‐oxo‐peroxo intermediate complexes were introduced as responsible species for oxidation of sulfides.…”

Section: Resultsmentioning

confidence: 99%

Facile synthesis of inorganic–organic Fe₂W₁₈Fe₄@NiO@CTS hybrid nanocatalyst induced efficient performance in oxidative desulfurization of real fuel

Rezvani

Maleki

2019

Applied Organom Chemis

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In this work, a new nanocatalyst, Fe2W18Fe4@NiO@CTS, was synthesized by the reaction of sandwich‐type polyoxometalate (Fe2W18Fe4), nickel oxide (NiO), and chitosan (CTS) via sol–gel method. The assembled nanocatalyst was systematically characterized by FT‐IR, UV–vis, XRD, SEM, and EDX analysis. The catalytic activity of Fe2W18Fe4@NiO@CTS was tested on oxidative desulfurization (ODS) of real gasoline and model fuels. The experimental results revealed that the levels of sulfur content and mercaptan compounds of gasoline were lowered with 97% efficiency. Also, the Fe2W18Fe4@NiO@CTS nanocatalyst demonstrated an outstanding catalytic performance for the oxidation of dibenzothiophene (DBT) in the model fuel. The major factors that influence the desulfurization efficiency and the kinetic study of the ODS reactions were fully detailed and discussed. The probable ODS pathway was proposed via the electrophilic mechanism on the basis of the electrophilic characteristic of the metal‐oxo‐peroxo intermediates. The prepared nanocatalyst could be reused for 5 successive runs without any appreciable loss in its catalytic activity. As a result, the current study suggested the potential application of the Fe2W18Fe4@NiO@CTS hybrid nanocatalyst as an ideal candidate for removal of sulfur compounds from fuel.

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Section: Resultsmentioning

confidence: 99%

Facile synthesis of inorganic–organic Fe₂W₁₈Fe₄@NiO@CTS hybrid nanocatalyst induced efficient performance in oxidative desulfurization of real fuel

Rezvani

Maleki

2019

Applied Organom Chemis

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“…Thus, there is an urgent need for inexpensive and energy‐saving alternative methods to achieve ultra‐deep desulfurization for the production of clean transportation fuels. A variety of alternative desulfurization techniques that have been studied include biodesulfurization, ODS, extraction and selective adsorption . Among them, ODS has been widely recognized as one of the most cost‐effective methods for deep desulfurization under moderate conditions (low temperature and ambient atmospheric pressure).…”

Section: Introductionmentioning

confidence: 96%

“…The application of bulk POMs as heterogeneous catalysts is limited because of their solubility in aquatic and polar media . To overcome this undesirable obstacle, the design and synthesis of heterogeneous catalysts have been explored in recent years by immobilization of POMs on appropriate supports . In recent decades, bentonite (BEN) has attracted more attention as a new type of mesoporous material due to its useful physical and chemical properties, low cost, thermal stability, high exchange capacity and adsorptive affinity for organic and inorganic ions .…”

Section: Introductionmentioning

confidence: 99%

Green and efficient organic–inorganic hybrid nanocatalyst for oxidative desulfurization of gasoline

Rezvani

Aghbolagh

Hosseini‐Monfared

2018

Applied Organom Chemis

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A new organic-inorganic hybrid nanocomposite (TBA-Si 2 W 18 Mn 4 @SAB) was synthesized by supporting quaternary ammonium salt of sandwich-type polyoxometalate (TBA-Si 2 W 18 Mn 4 ) on sodium-activated bentonite (SAB) for catalysing an oxidative desulfurization (ODS) process. The synthesized materials were characterized by means of elemental analysis, 29 Si NMR, Fourier transform infrared and UV-visible spectroscopies, X-ray diffraction and scanning electron microscopy. The proposed ODS process was successfully developed on the basis of the catalytic oxidation of organosulfur compounds using TBA-Si 2 W 18 Mn 4 @SAB as catalyst and CH 3 COOH/H 2 O 2 as oxidizing agent.The removal of the sulfur content of gasoline reached 97% at a temperature of 35°C after 1 h using 0.10 g of the prepared catalyst. Various experiments were conducted to investigate the effects of reaction time, catalyst amount, reaction temperature and catalyst type on sulfur removal efficiency. The heterogeneous TBA-Si 2 W 18 Mn 4 @SAB catalyst was found to be reusable for five times. The obtained data illustrated that the use of the TBA-Si 2 W 18 Mn 4 @SAB/ CH 3 COOH/H 2 O 2 oxidation system could be a convenient strategy for reducing the sulfur content of gasoline fuel under moderate reaction conditions.

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“…However, high solubility in aqueous media and low specific surface areas, are two main limitations of these systems, which make them difficult to separate and recycle . In order to overcome these limitations, the preparation of POM‐supported catalysts have attracted considerable interest over the past few years . Therefore, researchers have focused on the incorporation of POMs on metal oxides and cross‐linked neutral materials such as Chitosan (CS) .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of New Inorganic‐Organic Hybrid Nanocomposite PMo₁₁Cu@MgCu₂O₄@CS as an Efficient Heterogeneous Nanocatalyst for ODS of Real Fuel

et al. 2019

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In this work, a new nanocomposite (PMo11Cu@MgCu2O4@CS) was synthesized by reaction of copperII‐monosubstituted phosphomolybdate (PMo11Cu), magnesiocopperite (MgCu2O4) and Chitosan (CS) via the sol‐gel method. The assembled nanocomposite was characterized by FTIR, XRD, SEM. The catalytic activity of the nanocomposite was tested on oxidative desulfurization (ODS) of real gasoline in the presence of CH3COOH/H2O2 in the volume ratio of 1/2 as an oxidant. Additionally, the results were compared with the oxidation reaction of prepared model sulfur compounds at the same conditions. The ODS results showed that immobilized of PMo11Cu on the CS and MgCu2O4 nanoceramic increased the efficiency and activity of the PMo11Cu in the removal of organic sulfur compounds (OSCs). The PMo11Cu@CS @MgCu2O4 could be reused for at least five times without notable reduction in efficiency of ODS system. This investigation presents a promising approach to the efficient removal of OSCs from gasoline using PMo11Cu@MgCu2O4@CS catalyst under mild reaction conditions.

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Deep oxidative desulfurization of gasoline induced by PMoCu@MgCu2O4-PVA composite as a high-performance heterogeneous nanocatalyst

Cited by 91 publications

References 25 publications

Facile synthesis of inorganic–organic Fe₂W₁₈Fe₄@NiO@CTS hybrid nanocatalyst induced efficient performance in oxidative desulfurization of real fuel

Facile synthesis of inorganic–organic Fe₂W₁₈Fe₄@NiO@CTS hybrid nanocatalyst induced efficient performance in oxidative desulfurization of real fuel

Green and efficient organic–inorganic hybrid nanocatalyst for oxidative desulfurization of gasoline

Synthesis and Characterization of New Inorganic‐Organic Hybrid Nanocomposite PMo₁₁Cu@MgCu₂O₄@CS as an Efficient Heterogeneous Nanocatalyst for ODS of Real Fuel

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Deep oxidative desulfurization of gasoline induced by PMoCu@MgCu2O4-PVA composite as a high-performance heterogeneous nanocatalyst

Cited by 91 publications

References 25 publications

Facile synthesis of inorganic–organic Fe2W18Fe4@NiO@CTS hybrid nanocatalyst induced efficient performance in oxidative desulfurization of real fuel

Facile synthesis of inorganic–organic Fe2W18Fe4@NiO@CTS hybrid nanocatalyst induced efficient performance in oxidative desulfurization of real fuel

Green and efficient organic–inorganic hybrid nanocatalyst for oxidative desulfurization of gasoline

Synthesis and Characterization of New Inorganic‐Organic Hybrid Nanocomposite PMo11Cu@MgCu2O4@CS as an Efficient Heterogeneous Nanocatalyst for ODS of Real Fuel

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Facile synthesis of inorganic–organic Fe₂W₁₈Fe₄@NiO@CTS hybrid nanocatalyst induced efficient performance in oxidative desulfurization of real fuel

Facile synthesis of inorganic–organic Fe₂W₁₈Fe₄@NiO@CTS hybrid nanocatalyst induced efficient performance in oxidative desulfurization of real fuel

Synthesis and Characterization of New Inorganic‐Organic Hybrid Nanocomposite PMo₁₁Cu@MgCu₂O₄@CS as an Efficient Heterogeneous Nanocatalyst for ODS of Real Fuel