Biodiesel production from rubber seed oil using calcium oxide derived from eggshell as catalyst – optimization and modeling studies

Green Processing and Synthesis

article

A.V.S.L. Sai Bharadwaj¹  Madhu Singh¹  S. Niju²  K.M. Meera Sheriffa Begum¹  N. Anantharaman¹ 

[1] Department of Chemical Engineering, National Institute of Technology-Tiruchirappalli;Department of Biotechnology, PSG College of Technology

关键词: biodiesel;    eggshells;    calcium oxide (CaO);    RSM;    ANN;   

DOI  :  10.1515/gps-2019-0011

来源: De Gruyter

【 摘 要 】

In the present study, Calcium oxide (CaO) obtained from eggshells has been used as a heterogeneous catalyst for biodiesel production from highly viscous non-edible rubber seed oil (RSO). Characterization of synthesized catalyst was done with the help of scanning electron microscope equipped with Energy dispersive spectrometry (SEM-EDS), X-ray diffraction (XRD) and Fourier transform Infrared spectroscopy (FTIR). Response surface methodology (RSM) with central composite design (CCD) was used to optimize the process parameters and 1 H-NMR (Nuclear Magnetic Resonance) spectroscopy analysis was performed to find the conversion of RSO to biodiesel. A conversion of 99.7% of RSO to biodiesel was obtained at 12:1 methanol to oil molar ratio, 4 (wt%) of catalyst, and 3 hour reaction time with a quadratic regression model of R 2 of value 0.9566 was obtained. The composition of prepared biodiesel is estimated with the help of Gas Chromatogram-Mass Spectroscopy (GC-MS) analysis. Artificial Neural Network (ANN) with Levenberg-Marquardt algorithm was also trained to predict biodiesel conversion and the value of R 2 obtained was 0.9976. It was observed that predicted conversion values from ANN were better when compared to prediction using RSM.

【 授权许可】

CC BY