Auto-Catalytic Epoxidation of Oleic Acid Derived from Palm Oil Via In Situ Performed Acid Mechanism

IF 2.1 4区化学 Q3 CHEMISTRY, PHYSICAL

Catalysis Surveys from Asia Pub Date : 2023-05-04 DOI:10.1007/s10563-023-09398-8

Hamzah Hafizudin Habri, Intan Suhada Azmi, Nabisab Mujawar Mubarak, Mohd Jumain Jalil

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Abstract

The use of renewable materials in the epoxidation reaction has gained increasing attention due to the need to reduce reliance on non-renewable resources and minimize environmental impact. To date, there is a paucity of studies on the optimization of process to produce epoxidized oleic acid by auto-catalyst epoxidation using formic acid (by product) as catalyst as it is not fully utilised. The aim of this study is to investigate the effect of hydrogen peroxide concentration, type of oxygen carrier and stirring speed on the auto catalyst epoxidation of oleic acid. In this study, auto-catalyzed epoxidation using formic acid was applied in which formic acid acts as both a reactant and a catalyst to produce oxirane. The maximum selectivity of oleic acid into oxirane was 58% by applying the optimum epoxidation reaction parameters. Based on the Fourier transform infrared (FTIR) spectrum, the absorption peak at 1100 cm⁻¹ indicated the presence of oxirane rings (C–O–C bonds). Lastly, a mathematical model was developed using MATLAB software. In this model, the fourth-order Runge–Kutta method was integrated with genetic algorithm optimization to determine the kinetic model that fit with the experimental data. The kinetic model was validated by the fact that there was good agreement between the simulation and experimental data.

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棕榈油油酸原位自催化环氧化研究

由于需要减少对不可再生资源的依赖并尽量减少对环境的影响，在环氧化反应中使用可再生材料已引起越来越多的关注。目前，以甲酸(副产物)为催化剂的自催化环氧化法生产环氧化油酸的工艺优化研究较少，因为其利用率不高。研究了双氧水浓度、氧载体类型和搅拌速度对油酸自催化环氧化反应的影响。本研究采用甲酸自催化环氧化反应，甲酸同时作为催化剂和反应物生成氧环烷。采用最佳环氧化反应参数，油酸对氧环烷的最大选择性为58%。基于傅里叶变换红外(FTIR)光谱，在1100 cm−1处的吸收峰表明氧环(C-O-C键)的存在。最后，利用MATLAB软件建立数学模型。在该模型中，将四阶龙格-库塔法与遗传算法优化相结合，确定了与实验数据拟合的动力学模型。仿真结果与实验数据吻合较好，验证了动力学模型的正确性。

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来源期刊

Catalysis Surveys from Asia 化学-物理化学

CiteScore

4.80

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Early dissemination of important findings from Asia which may lead to new concepts in catalyst design is the main aim of this journal. Rapid, invited, short reviews and perspectives from academia and industry will constitute the major part of Catalysis Surveys from Asia . Surveys of recent progress and activities in catalytic science and technology and related areas in Asia will be covered regularly as well. We would appreciate critical comments from colleagues throughout the world about articles in Catalysis Surveys from Asia . If requested and thought appropriate, the comments will be included in the journal. We will be very happy if this journal stimulates global communication between scientists and engineers in the world of catalysis.