Specific approaches to radiation processing of high-sulfuric oil

Zaykina, R.F.; Zaykin, Yu.A.; Yagudin, Sh.G; Fahruddinov, I.M

doi:10.1016/j.radphyschem.2004.04.077

Cited by 42 publications

(12 citation statements)

References 1 publication

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“…The ODS system is more complicated process that the extraction of SCs in one step without oxidation, however with the former the efficiency of extraction generally increase considerably with the same IL at the same ratio, especially for water stable ILs. Different ODS processes have used different oxidants such as molecular oxygen , H 2 O 2 in combination with polyoxometalate (Gao et al, 2006, AlShahrani et al 2007, and acetic acid , ozone (Zaykina et al, 2004) and tertbutylhydroperoxide (Ishihara et al, 2005). The extraction of oxidized SCs can be carried out using conventional volatile and toxic organic solvents, or using a combination of catalytic oxidation and extraction with ILs is regarded to the "green desulfurization system".…”

Section: Oxidative Desulfurization Of Fuels Using Ionic Liquidsmentioning

confidence: 99%

Perspectives of Ionic Liquids Applications for Clean Oilfield Technologies

Martínez‐Palou¹,

Sánche²

2011

Ionic Liquids: Theory, Properties, New Approaches

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Section: Oxidative Desulfurization Of Fuels Using Ionic Liquidsmentioning

confidence: 99%

Perspectives of Ionic Liquids Applications for Clean Oilfield Technologies

Martínez‐Palou¹,

Sánche²

2011

Ionic Liquids: Theory, Properties, New Approaches

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“…In this process, the corresponding polar sulfoxides and sulfones are produced by oxidation reaction of different sulfur compounds under mild conditions which can be easily removed by solvent extraction or by adsorption . To date, different oxidant such as hydrogen peroxide, organic peroxides, nitric acid/NO 2 , ozone, molecular oxygen, and potassium superoxide have been used in ODS. Among these, H 2 O 2 has been widely used as the oxidant in the oxidative desulfurization because of its cheap, high oxygen activity, commercially available, non‐polluting, low corrosive and green (production of water as by product) properties.…”

Section: Introductionmentioning

confidence: 99%

An organic‐inorganic heterogeneous catalyst based on Keplerate polyoxometalates for oxidation of dibenzothiophene derivatives with Hydrogen peroxide

Fareghi‐Alamdari

Zekri

Moghadam

et al. 2018

Applied Organom Chemis

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An organic-inorganic material (NH 4 ) 2 (MimAM) 40 [Mo 132 O 372 (CH 3 COO) 30 (H 2 O) 72 ] have been synthesized by reacting [(NH 4 ) 42 [Mo VI 72 Mo V 60 O 372 (CH 3 COO) 30 (H 2 O) 72 ] with the ionic liquid 3-Aminoethyl-1-methylimidazolium bromide. The catalyst showed remarkably a high catalytic performance in the oxidation of dibenzothiophene (DBT) derivatives with H 2 O 2 35% as a safe and green oxidant. The main parameters affecting the process including catalyst, acid additive, hydrogen peroxide amounts and temperature have been investigated in detail. Sulfur removal of DBT in n-heptane reached to 98.3% yield at 40°C using 2.5 mmol H 2 O 2 and 100 mg of (NH 4 ) 2 (MimAM) 40 [Mo 132 O 372 (CH 3 COO) 30 (H 2 O) 72 ] after 90 min. Underthe optimal conditions, BT (benzothiophene), DBT (dibenzothiophene) and 4,6-DMDBT (4,6-dimethyl-dibenzothiophene) achieved high desulfurization efficiency. Our results showed that the reactivity order of different model sulfur compounds are thiophene <4,6-dimethyl dibenzothiophene< dibenzothiophene. The catalysts could be easily separated from the reaction solution by simple filtration and recycled for several times without loss of activity.

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“…Various oxidants, including H 2 O 2 , organic peroxide, potassium superoxide, molecular oxygen and ozone, are employed in ODS processes. Among these, H 2 O 2 is an attractive and environmentally friendly oxidant owing to its low cost, high availability and harmless byproduct.…”

Section: Introductionmentioning

confidence: 99%

Deep oxidative desulfurization of benzothiophene and dibenzothiophene with a peroxophosphotungstate–ionic liquid brush assembly

Sun

Fan

Wang

et al. 2015

Applied Organom Chemis

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A novel, efficient and reusable heterogeneous catalytic assembly of peroxophosphotungstate held in an ionic liquid brush was synthesized and an extraction and catalytic oxidative desulfurization (ECODS) procedure was developed for a model oil of benzothiophene (BT) and dibenzothiophene (DBT) using 30 wt% hydrogen peroxide as terminal oxidant and methanol as solvent under mild conditions. Several factors that affect sulfur removal were investigated in detail. The highest sulfur removal can reach 100% for BT in 7 h at 70°C when the molar ratio of H 2 O 2 , S and catalyst is 10:1:0.025. The sulfur removal for DBT can also reach 100% in 4 h at 50°C with the same molar ratio of H 2 O 2 , S and catalyst. The experimental results demonstrate that this ECODS process has no apparent scale-up effect. The catalyst can be easily recovered (via simple filtration) and recycled five times without a significant decrease in activity.

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Specific approaches to radiation processing of high-sulfuric oil

Cited by 42 publications

References 1 publication

Perspectives of Ionic Liquids Applications for Clean Oilfield Technologies

Perspectives of Ionic Liquids Applications for Clean Oilfield Technologies

An organic‐inorganic heterogeneous catalyst based on Keplerate polyoxometalates for oxidation of dibenzothiophene derivatives with Hydrogen peroxide

Deep oxidative desulfurization of benzothiophene and dibenzothiophene with a peroxophosphotungstate–ionic liquid brush assembly

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