Tall Oil Epoxidation in the Presence of Non-Noble Metal Oxide-Modified Heterogeneous Catalysts DOI
Tommaso Cogliano,

Angie Desgouliere,

Wander Y. Pérez-Sena

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 28, 2024

Catalytic epoxidation of tall oil, a Scandinavian raw material originating from the Kraft pulping process, was studied in this work. Conversely industrial reaction carried out via hydroperoxide pathway, where double bonds takes place by hydrogen peroxide without need for carrier. Metal oxide-modified SBA-15 catalysts were screened experiments performed laboratory-scale reactor operating conditions, such as temperature, time, and reactant molar ratio, kept constant. The main aim to identify best catalyst among those synthesized that would give promising results, terms activity selectivity, reaction. For purpose, relationship between physicochemical properties selected obtained performances system depth. Characterization analysis showed almost all exhibited an organized mesoporous structure typical any morphological deformation after metal introduction, which is present them oxide. Good shown most catalysts, with complete bond conversion 24 h However, selectivity target product not remarkable actvity. Among tested results presence Mn-SBA-15 25 23% 8 reaction, respectively.

Language: Английский

Continuous epoxidation of used cooking oils using an automated slug-flow millireactor DOI Creative Commons
Juliana Cárdenas, Benjamin Katryniok, Marcia Araque

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 506, P. 159907 - 159907

Published: Jan. 1, 2025

Language: Английский

Citations

1
Flexible Biobased Thermosets from Epoxidized Plant Oils: A Study of Aliphatic Cross-Linking Agents DOI Creative Commons
Jan Janesch, Axel Solt-Rindler,

Lara Dumschat

et al.

ACS Applied Polymer Materials, Journal Year: 2025, Volume and Issue: 7(6), P. 3686 - 3697

Published: March 12, 2025

This study investigates the preparation of flexible biobased thermosets by cross-linking epoxidized linseed oil (ELO) with three different hardeners: hexamethylene diamine (HMDA), bis(hexamethylene)triamine (BHMT), and sebacic acid. In a comparative analysis amine carboxylic acid cross-linkers, mechanical, thermal, chemical properties resulting were evaluated using Fourier transform infrared (FT-IR) spectroscopy, differential scanning calorimetry (DSC), dynamic mechanical (DMA), thermogravimetric (TGA), tensile testing. FT-IR spectroscopy revealed formation an amide network in samples cured hardeners. HMDA BHMT provided superior properties, strengths 3.7 MPa 2.3 MPa, respectively, compared to 2.0 for Glass transition temperatures also higher (16.0 °C) (12.4 (-1.4 °C). Moreover, TGA showed that reached point fastest mass loss at lower (385 than hardeners (450-470 °C), indicating their improved thermal stability. However, exhibited significant up 40% due evaporation during curing. shows potential cross-linkers enhancing performance underscores need further research into optimizing curing conditions chemistry.

Language: Английский

Citations

0
Intensified epoxidation of soybean oil: Evaluation and experimental optimization in a slug-flow millireactor DOI
Juliana Cárdenas, Benjamin Katryniok, Marcia Araque

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161345 - 161345

Published: March 1, 2025

Language: Английский

Citations

0
Synthesis of a modified heteropolyacid and evaluation as a phase-transfer catalyst for soybean oil epoxidation DOI
Juliana Cárdenas, Benjamin Katryniok, Marcia Araque

et al.

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Language: Английский

Citations

2
Assessment of Epoxidized Isobutyl Fatty Esters from Soybean Oil Distillates as Biobased Plasticizers DOI

Laura N. Nájera,

Álvaro Orjuela, Paulo César Narváez Rincón

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

This study evaluated the production and performance of biobased epoxidized isobutyl esters (EIE) as sustainable plasticizers for polymers, aiming to support circular economy models within chemical industry. EIE were synthesized through esterification alcohol with oleic linoleic acids well soybean oil deodorizer distillates (SODD), followed by subsequent epoxidation. The plasticizing effect oleate, linoleate, soyate was assessed studying their mechanical thermal properties performing Dynamic Mechanical Analysis (DMA) on PVC films prepared at a fixed content 70 phr using solvent casting method. structure identified Fourier transform infrared (FTIR) spectroscopy while permanence investigated migration volatility tests. Finally, barrier such water vapor permeability alongside surface characteristics contact angle transparency UV–visible spectroscopy. Dioctyl phthalate (DOP) (ESO) used reference commercial plasticizers. Among different EIE, (EIS) showed remarkable results high elasticity (500%), stability, tensile strength (11.2 MPa) comparable plasticizers, efficiency (106.2%). However, properties, migration, affected composition this ester. Overall, exhibited moderate rates which limit use general purpose but they might be effectively low temperature applications coplasticizers polymers.

Language: Английский

Citations

1
Sustainable Biocatalytic System for the Enzymatic Epoxidation of Waste Cooking Oil DOI Open Access
Iunia Podolean, Mădălina Tudorache

Materials, Journal Year: 2024, Volume and Issue: 17(18), P. 4518 - 4518

Published: Sept. 14, 2024

The present study is integrated in a global effort to capitalize waste cooking oil (WCO) into versatile compounds by introducing an oxirane ring the unsaturated carbon chain of fatty acid residues (the epoxidation double bound). Therefore, enzymatic method was set up for artificially adulterated WCO (SFw) and under real conditions (SFr) derived from sunflower biomass. Commercial lipase (Novozyme, NZ) used as biocatalyst generating peracid requested pathway. Optimum experimental (e.g., 1.5 wt% NZ, 1:1:0.5 = H2O2/double bonds/peracid precursor (molar ratio) 12 h reaction time) allowed conversion 90% SFw substrate products with ring. Octanoic selected best precursor. versatility developed system tested olive, milk thistle, hemp linseed oils both fresh samples. characterization samples before after evaluation performance. SFw/SFr exhibited better susceptibility epoxidation. In addition, reusability biocatalytic investigated. Furthermore, different strategies, such coating addition organic solvents/buffers were applied, limiting enzyme leaching, recovery activity.

Language: Английский

Citations

1
Comparison of continuous technologies for vegetable oils epoxidation DOI Creative Commons
Tommaso Cogliano, Vincenzo Russo,

Kari Eränen

et al.

Chemical Engineering Science, Journal Year: 2024, Volume and Issue: unknown, P. 120726 - 120726

Published: Sept. 1, 2024

Language: Английский

Citations

0
Tall Oil Epoxidation in the Presence of Non-Noble Metal Oxide-Modified Heterogeneous Catalysts DOI
Tommaso Cogliano,

Angie Desgouliere,

Wander Y. Pérez-Sena

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 28, 2024

Catalytic epoxidation of tall oil, a Scandinavian raw material originating from the Kraft pulping process, was studied in this work. Conversely industrial reaction carried out via hydroperoxide pathway, where double bonds takes place by hydrogen peroxide without need for carrier. Metal oxide-modified SBA-15 catalysts were screened experiments performed laboratory-scale reactor operating conditions, such as temperature, time, and reactant molar ratio, kept constant. The main aim to identify best catalyst among those synthesized that would give promising results, terms activity selectivity, reaction. For purpose, relationship between physicochemical properties selected obtained performances system depth. Characterization analysis showed almost all exhibited an organized mesoporous structure typical any morphological deformation after metal introduction, which is present them oxide. Good shown most catalysts, with complete bond conversion 24 h However, selectivity target product not remarkable actvity. Among tested results presence Mn-SBA-15 25 23% 8 reaction, respectively.

Language: Английский

Citations

0