Synthesis of Asphaltene-Based Strongly Acidic Sulfonated Cation Exchangers and Determination of Their Catalytic Properties in the 2,2-Dimethyl-1,3-Dioxolane Synthesis Reaction

Foss, L. E.; Shabalin, K. V.; Musin, L. I.; Nagornova, O. A.; Salikhov, Ramazan Z.; Borisov, D. N.; Мусин, Р. З.; Yakubov, M. R.

doi:10.1134/s0965544120060055

Cited by 19 publications

(9 citation statements)

References 11 publications

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“…Such polyaromatic hydrocarbons are formed in the oil industry as by-products, mainly in tar deasphalting plants; their further disposal is part of the more general problem of heavy oil residues disposal. It was shown earlier that by sulfonating asphaltenes, ion-exchange materials can be obtained that are applicable for water treatment [24][25][26]; some preliminary data on the catalytic properties of these materials were also reported [27]. In this work, the sulfonation of asphaltenes is used as an approach for the preparation of non-porous acid catalysts, as a result of which a set of samples with different sulfonation degrees was obtained.…”

Section: Introductionmentioning

confidence: 89%

Non-Porous Sulfonic Acid Catalysts Derived from Vacuum Residue Asphaltenes for Glycerol Valorization via Ketalization with Acetone

et al. 2021

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In this study, an approach for the preparation of heterogeneous acid catalysts based on asphaltenes isolated from vacuum residue is proposed. Varying the conditions for the sulfonation of asphaltenes made it possible to obtain materials with an acid value of 1.16 to 2.76 meq g–1 and a total sulfur content of 6.4 to 12.3 wt%. The samples obtained were characterized by acid-base titration, nitrogen adsorption, sulfur elemental analysis and transmission electron microscopy techniques, and were studied as potential acid catalysts in the ketalization reaction between glycerol and acetone. Sulfonated asphaltenes (SA) were characterized by a homogeneous distribution of sulfonic groups over the granule surface and an almost complete absence of a porous structure. The ketalization reaction in the presence of SA proceeded without intradiffusion restrictions; as a result of which, their activity was higher than for known heterogeneous catalysts. The most active SA sample (total acid value, 1.16 meq g–1) had an apparent activation energy of 18.0 kJ mol–1, which was lower than the value obtained for the zeolite BEA-40 (29–53 kJ mol–1) and the Amberlyst 36 resin (27 kJ mol–1), and was close to the value for the homogeneous p-TSA catalyst (14.5 kJ mol–1). The SA heterogeneous catalysts did not show any acid leaching and had no loss of activity after five catalytic cycles, with the total turnover number TON = 7247.

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Section: Introductionmentioning

confidence: 89%

Non-Porous Sulfonic Acid Catalysts Derived from Vacuum Residue Asphaltenes for Glycerol Valorization via Ketalization with Acetone

et al. 2021

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“…The modified asphaltenes were further neutralized with diethanolamine, and their structural features were investigated . Preparation of sulfonated asphaltene using a sulfuric acid–oleum mixture under various conditions and its cation exchange and catalytic properties were described . The nitration of asphaltenes with concentrated nitric acid was studied by Nagornova et al, and the degree of nitration was confirmed by IR spectroscopy .…”

Section: Applicationsmentioning

confidence: 99%

The Asphaltenes: State-of-the-Art Applications and Future Perspectives in Materials Science

Ok,

Samuel,

Bahzad

et al. 2024

Energy Fuels

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In the present review article, we summarize current investigations and contributions on a wide range applications of asphaltenes. Asphaltenes have been studied extensively for their potential novel applications. Recently, there has been increasing interest in revealing the potential of asphaltenes in different areas, such as electronics, polymer composites, supercapacitors, and gas-adsorbing matrixes. Upon giving describing asphaltenes’ structural characteristics, we focus on the applications of asphaltenes by correlating their chemical and electronic structure to their applications. After summarizing lessons learned about asphaltenes, we conclude the review by proposing new areas to apply asphaltenes and how to improve the current applications of asphaltenes.

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“…Polymer-supported catalysts have the benefit of being able to manipulate their textural characteristics by changing the synthesis conditions. Furthermore, this type of material is less toxic in comparison with metal catalysts, as it is not susceptible to leaching [8][9][10]. Larger surface areas in porous polymer particles result in a greater number of catalytic sites, therefore controlling this characteristic as a function of polymerization factors is of significant importance [11].…”

Section: Introductionmentioning

confidence: 99%

Functionalized Polyethylene Glycol as a Catalyst for Esterification of Salicylic Acid

Farouq

Selim

2023

J Polym Environ

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In this work, two catalysts based on polyethylene glycol (PEG) containing sulfonic acid group and the −COOH group of citric acid (CA) were synthesized. Characterization of the −SO3H functionalized PEG and citric acid functionalized PEG has been carried out using FT–IR. The acidity of PEG–SO3H and PEG–CA has been explored to investigate their catalytic efficiency towards eco-friendly production of methyl salicylate via esterification of salicylic acid using methanol as a reactant as well as solvent. Methanol to acid molar ratios of 4:1, 6:1, 8:1, and 10:1 was applied. The sulfonated PEG is found to be a very active solid acid catalyst giving high yields (82%) under the optimized reaction conditions (10:1 M ratio of methanol to acid; reaction temperature, 65 °C; reaction time, 150 min with catalyst loading of 1.5%. In comparison with the catalytic activity of H2SO4, PEG–SO3H, and PEG-CA; the PEG–SO3H surpassed the catalytic activity of both H2SO4 and PEG–CA. The IEC of PEG–SO3H was 4 meq/g. And the maximum water uptake of PEG-SO3H was 8.25%.

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Synthesis of Asphaltene-Based Strongly Acidic Sulfonated Cation Exchangers and Determination of Their Catalytic Properties in the 2,2-Dimethyl-1,3-Dioxolane Synthesis Reaction

Cited by 19 publications

References 11 publications

Non-Porous Sulfonic Acid Catalysts Derived from Vacuum Residue Asphaltenes for Glycerol Valorization via Ketalization with Acetone

Non-Porous Sulfonic Acid Catalysts Derived from Vacuum Residue Asphaltenes for Glycerol Valorization via Ketalization with Acetone

The Asphaltenes: State-of-the-Art Applications and Future Perspectives in Materials Science

Functionalized Polyethylene Glycol as a Catalyst for Esterification of Salicylic Acid

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