Investigation of the intrinsic reaction kinetics and the mass transfer phenomena of nonanoic acid esterification with 2-ethylhexanol promoted by sulfuric acid or Amberlite IR120

Russo, Vincenzo; Taddeo, Francesco; Cogliano, Tommaso; Vitiello, Rosa; Esposito, Roberto; Tesser, Riccardo; Salmi, Tapio; Serio, Martino Di

doi:10.1016/j.cej.2020.127236

Cited by 19 publications

(19 citation statements)

References 21 publications

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“…The reaction was carried out under inert atmosphere at 90 °C in a three-neck round bottom reactor, using a mass ratio of 4:100 (catalyst to oleic acid), as previously reported by Ferreira et al (2020). This was performed for 6 h under agitation of 500 rpm, which should eliminate any external mass transfer constraints (Russo et al 2021).…”

Section: Catalytic Activitymentioning

confidence: 99%

“…Several studies have been reported using esterification reactions between FFA and longchain alcohols, such as 2-ethylhexanol (Ferreira et al 2020;Oliveira et al 2020;Russo et al 2021;Pindit et al 2021;Salimon, Salih and Yousif 2012). As well known, using heterogeneous instead of homogeneous catalysts convey several advantages, such as reduction in waste water, catalyst recovery and mitigation of potential corrosion problems in plant equipment (Radhakrishnan et al 2011).…”

Section: Introductionmentioning

confidence: 99%

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Sulfonated MCM-41 as potential catalyst to obtain biolubricants from vegetable oil

Silvestre‐Albero

Maier

Ricardo

et al. 2022

Braz. J. Chem. Eng.

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Biolubricants may be obtained from vegetable oils using appropriate chemical modifications, to improve their physicochemical properties for lubrication applications. In this study, the esterification of a free fatty acid (FFA) with long chain alcohols was performed using sulfonated mesoporous silica as catalyst. Fresh and functionalized MCM-41 samples were prepared to evaluate the effect of the sulfonic surface group on the esterification reaction. MCM-41 was functionalized via post-synthesis modification using 3-mercaptopropyltrimethoxysilane (MPTS) as silylating agent. The synthesized catalysts were characterized using several techniques. After the functionalization, a decrease in the apparent surface area and pore diameter were observed. The MCM-41/SO3H sample was applied in the esterification reaction of oleic acid (as a FFA model) using two different long-chain alcohols (octanol and 2-ethylhexanol). The catalytic results reveal that sulfonated catalyst showed excellent conversions (~100% mol when using octanol and >93% mol using 2-ethylhexanol) and selectivities to esters (ca. 90%).

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Section: Catalytic Activitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sulfonated MCM-41 as potential catalyst to obtain biolubricants from vegetable oil

Silvestre‐Albero

Maier

Ricardo

et al. 2022

Braz. J. Chem. Eng.

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“…The problems connected with the use of homogeneous catalysts are the necessity of product purification [13,14] and the reactor corrosion due to liquid catalysts [28][29][30]. Heterogeneous catalysts show several advantages as they are non-corrosive, environmentally friendly, and are easily separated from the products [31,32]. Among heterogeneous catalysts, Amberlyst 15 is suitable for esterification reaction, but it degrades at T ≥ 120 • C [33].…”

Section: Introductionmentioning

confidence: 99%

Production of Sustainable Biochemicals by Means of Esterification Reaction and Heterogeneous Acid Catalysts

et al. 2021

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In recent years, the use of renewable raw materials for the production of chemicals has been the subject of different studies. In particular, the interest of the present study was the use of oleins, mixtures of free fatty acids (FFAs), and oleic acid to produce bio-based components for lubricants formulations and the investigation of the performance of a styrene-divinylbenzene acid resin (sPSB-SA) in the esterification reaction of fatty acids. This resin has shown good activity as a heterogeneous catalyst and high stability at elevated temperatures (180 °C). It was tested in the esterification reaction of oleic acid with 1,3-propanediol and of oleic acid with glycerol. In particular, the esterification reactions were performed in a steel stirred batch reactor and a PBR loop reactor. Tests were conducted varying the reaction conditions, such as alcohol type, temperature, reaction time, and catalysts, both homogeneous and heterogeneous ones. From the obtained results, acid resin (both in reticulated and not-reticulated form) showed high activity in esterification reaction of oleic acid with 1,3-propanediol and of oleic acid with glycerol and good resistance to the deactivation; thus, they can be considered promising candidates for future applications in continuous devices. Viscosity tests were performed, underlining the good properties of the obtained products as lubricant bases.

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“…It is used both for softening water (sodium form) and for water demineralization (hydrogen form) in installations with parallel-flow regeneration. Its main characteristics are excellent physical and chemical stability and heat resistance, good ion exchange kinetics and high exchange capacity [ 24 , 25 , 26 , 27 , 28 , 29 ].…”

Section: Introductionmentioning

confidence: 99%

Impact of Neodymium and Scandium Ionic Radii on Sorption Dynamics of Amberlite IR120 and AB-17-8 Remote Interaction

Jumadilov¹,

Totkhuskyzy

Malimbayeva

et al. 2021

Materials

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The aim of the work is to provide a comparative study of influence of ionic radii of neodymium and scandium ions on their sorption process from corresponding sulfates by individual ion exchangers Amberlite IR120, AB-17-8 and interpolymer system Amberlite IR120-AB-17-8. Experiments were carried out by using the following physicochemical methods of analysis: conductometry, pH-metry, colorimetry, and atomic-emission spectroscopy. Ion exchangers in the interpolymer system undergo remote interactions with a further transition into highly ionized state. There is the formation of optimal conformation in the structure of the initial ion exchangers. A significant increase of ionization of the ion-exchange resins occurs at molar ratio of Amberlite IR120:AB-17-8 = 5:1. A significant increase of sorption properties is observed at this ratio due to the mutual activation of ion exchangers. The average growth of sorption properties in interpolymer system Amberlite IR120:AB-17-8 = 5:1 is over 90% comparatively to Amberlite IR120 and almost 170% comparatively to AB-17-8 for neodymium ions sorption; for scandium ions sorption the growth is over 65% comparatively to Amberlite IR120 and almost 90% comparatively to AB-17-8. A possible reason for higher sorption of neodymium ions in comparison with scandium ions is maximum conformity of globes of internode links of Amberlite IR120 and AB-17-8 after activation to sizes of neodymium sulfate in an aqueous medium.

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Investigation of the intrinsic reaction kinetics and the mass transfer phenomena of nonanoic acid esterification with 2-ethylhexanol promoted by sulfuric acid or Amberlite IR120

Cited by 19 publications

References 21 publications

Sulfonated MCM-41 as potential catalyst to obtain biolubricants from vegetable oil

Sulfonated MCM-41 as potential catalyst to obtain biolubricants from vegetable oil

Production of Sustainable Biochemicals by Means of Esterification Reaction and Heterogeneous Acid Catalysts

Impact of Neodymium and Scandium Ionic Radii on Sorption Dynamics of Amberlite IR120 and AB-17-8 Remote Interaction

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