Synergistic hybrid catalyst synthesis for epoxidation of linoleic acid via in situ performic acid

• Published in: BIOMASS CONVERSION AND BIOREFINERY
• Main Authors: Shahrizan, Ahmad Shauqi Abrar; Azmi, Intan Suhada; Mubarak, Nabisab Mujawar; Jalil, Mohd Jumain
• Format: Article; Early Access
• Language: English
• Published: SPRINGER HEIDELBERG 2024
• Subjects: Energy & Fuels; Engineering
• Online Access: https://www-webofscience-com.uitm.idm.oclc.org/wos/woscc/full-record/WOS:001202042800004

This study aims to investigate the optimal conditions for the epoxidation of linoleic acid by an in situ peracid mechanism with an applied hybrid sulfuric and hydrochloric acid as catalysts. There is no published work on producing epoxidized linoleic acid by peracetic acid mechanism using a hybrid homogenous-homogenous catalyst. The linoleic acid was epoxidized with performic acid obtained in situ through the reaction between formic acid and hydrogen peroxide in the presence of a catalyst. The highest conversion to oxirane of 85% was achieved at a ratio of 1 M formic acid to 2 M of hydrogen peroxide, a temperature of 45 degrees C, and a stirring speed of 400 rpm. The characterization using a Fourier-transform infrared spectroscopy (FTIR) shows the existence of the oxirane ring group at wavenumber 860 cm-1. The numerical simulations were performed using a genetic algorithm, and the results showed good agreement between the simulation and experimental data, which validates the kinetic model.