Coal fly ash supported ZnO catalyzed transesterification of Jatropha curcas oil: Optimization by response surface methodology

Herein, a zinc oxide based coal fly ash (ZnO-CFA) composite as heterogeneous catalyst was formulated and explored for transesterification of non-edible oil (Jatropha curcas oil, JCO). The as-synthesized catalyst was analyzed to gain insights into its properties using various characterization techniq...

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Main Authors: Adeyinka Sikiru Yusuff, Lekan Taofeek Popoola, David Olalekan Adeniyi, Moses Aderemi Olutoye
Format: Article
Language:English
Published: Elsevier 2022-12-01
Series:Energy Conversion and Management: X
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590174522001258
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author Adeyinka Sikiru Yusuff
Lekan Taofeek Popoola
David Olalekan Adeniyi
Moses Aderemi Olutoye
author_facet Adeyinka Sikiru Yusuff
Lekan Taofeek Popoola
David Olalekan Adeniyi
Moses Aderemi Olutoye
author_sort Adeyinka Sikiru Yusuff
collection DOAJ
description Herein, a zinc oxide based coal fly ash (ZnO-CFA) composite as heterogeneous catalyst was formulated and explored for transesterification of non-edible oil (Jatropha curcas oil, JCO). The as-synthesized catalyst was analyzed to gain insights into its properties using various characterization techniques (EDX, FTIR, TEM, XRD and BET). The solid catalyst’s ability to catalyze the methanolysis reaction was investigated and optimized at varying reaction temperature, methanol/JCO molar ratio and catalyst dosage using Box-Behnken design. Predicted values of biodiesel yield were found to be in agreement with the experimental values obtained R2=0.9751andAdj.R2=0.9431. It was determined that optimum transesterification process conditions of 60.4 °C reaction temperature, 11.8:1 methanol/JCO molar ratio and 1.63 wt% catalyst loading resulted in biodiesel yield and FAME content of 91.08 ± 0.06 % and 97.22 %, respectively. Additionally, the produced biodiesel at the optimum conditions was shown to be conformed to ASTM standard. The ZnO-CFA catalyst was simple to synthesize and handle, eliminating the need for costly aluminosilicate-based catalysts in biofuel synthesis. It was also simple to separate from the product stream and could be recycled up to four times.
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spelling doaj.art-3fc7fbfe3975430e84c369e2a5493df02022-12-22T04:17:35ZengElsevierEnergy Conversion and Management: X2590-17452022-12-0116100302Coal fly ash supported ZnO catalyzed transesterification of Jatropha curcas oil: Optimization by response surface methodologyAdeyinka Sikiru Yusuff0Lekan Taofeek Popoola1David Olalekan Adeniyi2Moses Aderemi Olutoye3Department of Chemical and Petroleum Engineering, College of Engineering, Afe Babalola University, Ado-Ekiti, Nigeria; Corresponding author.Department of Chemical and Petroleum Engineering, College of Engineering, Afe Babalola University, Ado-Ekiti, NigeriaDepartment of Chemical Engineering, School of Infrastructure, Process Engineering and Technology, Federal University of Technology, Minna, Niger State, NigeriaDepartment of Chemical Engineering, School of Infrastructure, Process Engineering and Technology, Federal University of Technology, Minna, Niger State, NigeriaHerein, a zinc oxide based coal fly ash (ZnO-CFA) composite as heterogeneous catalyst was formulated and explored for transesterification of non-edible oil (Jatropha curcas oil, JCO). The as-synthesized catalyst was analyzed to gain insights into its properties using various characterization techniques (EDX, FTIR, TEM, XRD and BET). The solid catalyst’s ability to catalyze the methanolysis reaction was investigated and optimized at varying reaction temperature, methanol/JCO molar ratio and catalyst dosage using Box-Behnken design. Predicted values of biodiesel yield were found to be in agreement with the experimental values obtained R2=0.9751andAdj.R2=0.9431. It was determined that optimum transesterification process conditions of 60.4 °C reaction temperature, 11.8:1 methanol/JCO molar ratio and 1.63 wt% catalyst loading resulted in biodiesel yield and FAME content of 91.08 ± 0.06 % and 97.22 %, respectively. Additionally, the produced biodiesel at the optimum conditions was shown to be conformed to ASTM standard. The ZnO-CFA catalyst was simple to synthesize and handle, eliminating the need for costly aluminosilicate-based catalysts in biofuel synthesis. It was also simple to separate from the product stream and could be recycled up to four times.http://www.sciencedirect.com/science/article/pii/S2590174522001258BiodieselZnOFly ashTransesterificationCatalystOptimization
spellingShingle Adeyinka Sikiru Yusuff
Lekan Taofeek Popoola
David Olalekan Adeniyi
Moses Aderemi Olutoye
Coal fly ash supported ZnO catalyzed transesterification of Jatropha curcas oil: Optimization by response surface methodology
Energy Conversion and Management: X
Biodiesel
ZnO
Fly ash
Transesterification
Catalyst
Optimization
title Coal fly ash supported ZnO catalyzed transesterification of Jatropha curcas oil: Optimization by response surface methodology
title_full Coal fly ash supported ZnO catalyzed transesterification of Jatropha curcas oil: Optimization by response surface methodology
title_fullStr Coal fly ash supported ZnO catalyzed transesterification of Jatropha curcas oil: Optimization by response surface methodology
title_full_unstemmed Coal fly ash supported ZnO catalyzed transesterification of Jatropha curcas oil: Optimization by response surface methodology
title_short Coal fly ash supported ZnO catalyzed transesterification of Jatropha curcas oil: Optimization by response surface methodology
title_sort coal fly ash supported zno catalyzed transesterification of jatropha curcas oil optimization by response surface methodology
topic Biodiesel
ZnO
Fly ash
Transesterification
Catalyst
Optimization
url http://www.sciencedirect.com/science/article/pii/S2590174522001258
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