Sulfolane and dimethyl sulfoxide as extractants

Zaretskii, M. I.; Rusak, V. V.; Chartov, E. M.

doi:10.3103/s1068364x13070089

Cited by 5 publications

(6 citation statements)

References 5 publications

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“…derivatives. An attractive alternative to commonly used industrial extractive liquids is sulfolane, an anthropogenic organosulfur medium regarded as a versatile dipolar aprotic solvent [9,10]. Sulfolane (C4H8SO2) is the generic name for hydrogenated sulfones of butadiene [11].…”

Section: Beware Of Sulfolanementioning

confidence: 99%

“…Sulfolane is a non-reactive, water-soluble dipolar aprotic industrial solvent that was first engineered and patented by Shell Oil Company in the early 1940s [10]. The original process of sulfolane synthesis is based on the hydrogenation of 3-sulfolene (3) obtained as a product of sulfur dioxide (2) and butadiene (1) reaction (Scheme 1).…”

Section: Synthesis and Manufacturingmentioning

confidence: 99%

“…In fact, a range of solvents can be employed in the extraction process used in oil refining including (di/tri/tetra) ethylene glycol (D/T/TT/EG), diglycol amine (DGA), n-methyl pyrolidone (NMP), dimethylsulphoxide (DMSO), dimethylformamide (DMF), morpholine and carbonate derivatives. An attractive alternative to commonly used industrial extractive liquids is sulfolane, an anthropogenic organosulfur medium regarded as a versatile dipolar aprotic solvent [9,10]. Sulfolane (C 4 H 8 SO 2 ) is the generic name for hydrogenated sulfones of butadiene [11].…”

Section: Introductionmentioning

confidence: 99%

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Sulfolane: Magic Extractor or Bad Actor? Pilot-Scale Study on Solvent Corrosion Potential

et al. 2018

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The sulfur-containing derivatives and their metabolites, regarded as ‘old devils of green’ chemistry, constitute a relevant class of air/water/soil contaminants in over-polluted world. In fact, some industrially-engineered solvents have become environmentally unfavorable. An attractive alternative to commonly used industrial liquids is sulfolane (C4H8SO2), an anthropogenic medium. The main objective of this paper is the comprehensive review focusing mainly on the state-of-the-art aspects of the sulfolane synthesis, application of sulfolane as an extractive solvent due to its ‘unique’ physicochemical properties as well as the potential of sulfolane to cause equipment corrosion and subsequent spills. The potential risk for groundwater contamination, danger for human health and ways of sulfolane biodegradation were briefly reviewed as well. Interestingly, the analysis performed on data stored in the Reaxys database revealed an alternating tendency of waxing and waning interest in sulfolane during the space of the last fifty years. Moreover, the primary goal of the presented case study was to verify applicability of industrial, multi-electrochemical technique for reliable detection of corrosion in low conductive process fluids. Several aspects of corrosion measurement including the impact of process parameters (temperature) and impurities (oxygen and chlorides) on stainless steel corrosion in pure sulfolane were investigated briefly.

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Section: Beware Of Sulfolanementioning

confidence: 99%

Section: Synthesis and Manufacturingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Sulfolane: Magic Extractor or Bad Actor? Pilot-Scale Study on Solvent Corrosion Potential

et al. 2018

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“…An interesting substitute to widely employed extractive liquids in the petroleum refining or softening (sweetening) of sour gases is 2,3,4,5-tetrahydrothiophene-1,1-dioxide, customarily named sulfolane (C 4 H 8 O 2 S) [6]. Due to its high selectivity for aromatic hydrocarbons, sulfolane (SFL) is extensively applied in the dearomatization of hydrocarbon-based mixtures, for instance, jet or diesel fuel [7]. Regrettably, the extensive manufacturing and multitude of industrial SFL applications have caused problems with liquid storage security, resulting in some unintentional spills of pure solvents from extraction units in refineries/gas plants or accidental releases of sulfolane-containing wastes [8].…”

Section: Introductionmentioning

confidence: 99%

Water-Induced Corrosion Damage of Carbon Steel in Sulfolane

et al. 2020

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Sulfolane in contact with water and oxygen forms acidic (by-) products that are major factors in accelerating the corrosion of carbon/stainless steel. In consequence, water-induced corrosion damage can be a serious problem in industrial systems. Hence, the determination of the corrosion resistance of AISI 1010 steel immersed in sulfolane containing 0 to 6 vol.% water was the principal objective of the study. Evaluation of the corrosion resistance of steel electrodes was performed using a potentiodynamic technique and scanning Kelvin probe microscopy. It was observed that the corrosion products layer that formed on the surface of AISI 1010 steel partially protects it against corrosion in sulfolane with a water concentration in the range from 1 vol.% to 4 vol.%. Interestingly, amounts of water above 4 vol.% cause a break-down of the corrosion products layer and deteriorate the corrosion resistance of AISI 1010 steel as well. Moreover, the relationship between the fractal dimension, corrosion degree of the steel surface and water concentration in sulfolane was investigated. The fractal dimension was determined using 2D grayscale images of AISI 1010 steel registered through a scanning electron microscope. It was noticed that both the fractal dimension and the corrosion degree rose with the increased water concentration in sulfolane.

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“…Due to its satisfactory selectivity, low boiling temperature, and its capacity for dissolving large quantities of aromatics, sulfolane is the preferred solvent for liquid-liquid and liquid-vapor extraction processes when separating compounds with various degrees of saturation and polarity in the extractive rectification of BTX (benzene, toluene, xylene) mixture from the non-aromatic saturated hydrocarbons [8,9,10].…”

Section: Introductionmentioning

confidence: 99%

Real-Time Corrosion Monitoring of AISI 1010 Carbon Steel with Metal Surface Mapping in Sulfolane

et al. 2019

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Solvents are widely used in organic synthesis. Sulfolane is a five-membered heterocyclic organosulfur sulfone (R-SO2-R’, where R/R’ is alkyl, alkenyl, or aryl) and an anthropogenic medium commonly used as industrial extractive solvent in the liquid-liquid and liquid-vapor extraction processes. Under standard conditions sulfolane is not aggressive towards steel, but at higher temperatures and in oxygen, water, or chlorides presence, it can be decomposed into some corrosive (by-)products with generation of SO2 and subsequent formation of corrosive H2SO3. This pilot-case study provides data from laboratory measurements performed in low conductivity sulfolane-based fluids using an industrial multi-electrochemical technique for reliable detection of corrosion processes. In particular, a comprehensive evaluation of the aqueous phase impact on general and localized corrosion of AISI 1010 carbon steel in sulfolane is presented. Assessment of corrosive damage was carried out using an open circuit potential method, potentiodynamic polarization curves, SEM/EDS and scanning Kelvin probe technique. It was found that an increase in the water content (1–3 vol.%) in sulfolane causes a decrease in the corrosion resistance of AISI 1010 carbon steel on both uniform and pitting corrosion due to higher conductance of the sulfolane-based fluids.

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Sulfolane and dimethyl sulfoxide as extractants

Cited by 5 publications

References 5 publications

Sulfolane: Magic Extractor or Bad Actor? Pilot-Scale Study on Solvent Corrosion Potential

Sulfolane: Magic Extractor or Bad Actor? Pilot-Scale Study on Solvent Corrosion Potential

Water-Induced Corrosion Damage of Carbon Steel in Sulfolane

Real-Time Corrosion Monitoring of AISI 1010 Carbon Steel with Metal Surface Mapping in Sulfolane

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