April 16, 2024
Babak Aghel

Babak Aghel

Academic rank: Associate professor
Address: Department of Chemical Engineering, Faculty of Energy, Kermanshah University of Technology (KUT), Imam Khomeini Highway, Kermanshah, Iran
Education: Ph.D in Chemical Engineering
Phone: 083-38305000 (1168)
Faculty: Faculty of Engineering

Research

Title
Optimization of the microreactor-intensified transesterification process using silver titanium oxide nanoparticles decorated magnetic graphene oxide nanocatalyst
Type Article
Keywords
MicroreactorMagnetic nanocompositeBiodieselTransesterificationBox-Behnken design
Researchers Maryam Safaripour، Ehsan Parandi، Babak Aghel، Ashkan Gouran، Majid Saidi، Hamid Rashidi Nodeh

Abstract

In the current study, the biodiesel fuel generation from waste cooking oil (WCO) as a low-cost feedstock was performed in a T-shaped microreactor through a transesterification process in the presence of binary metal oxide of silver-titanium oxide nanoparticles doped over magnetic graphene oxide (MGO@TiO2Ag) as a novel catalyst. Scanning electron microscopy (SEM), Transform Infrared Spectroscopy (FTIR), vibrating-sample magnetometer (VSM), Energy-Dispersive X-ray Spectroscopy (EDX), and Powder X-ray diffraction (XRD) were employed to characterize the MGO@TiO2Ag nanocatalyst. The Box-Behnken design (BBD) based on the response surface methodology (RSM) was used to optimize the reaction parameters, including methanol to oil volume ratio (Me/Oil), residence time and catalyst concentration. Following data analysis and optimization of the transesterification reaction, the maximum yield of fatty acid methyl esters (FAMEs) which was equal to 96.54 ± 1.16 %, was achieved at the residence time of 169.15 s, Me/Oil ratio of 2.52, and catalyst concentration of 4.15 wt%. All attributes of the manufactured FAMEs were within the permitted ranges of the ASTM D6751 standard, indicating high quality. The finding of this work demonstrated that employing a microreactor has an influential role in producing FAMEs in the presence of an MGO@TiO2Ag nanocatalyst.