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Articles

The feasibility and optimization of biodiesel production from Celtis australis L. oil using chicken bone catalyst and ultrasonic waves

, , , , , & ORCID Icon show all
Pages 513-521 | Received 13 Apr 2019, Accepted 24 May 2019, Published online: 16 Jul 2019
 

Abstract

Biodiesel is a green renewable energy source and an alternative for diesel fuel. The objective of this research was to study the feasibility of biodiesel production from Celtis australis L. oil using an ultrasonic system and CaO derived from chicken bone as a biowaste renewable resource. In this research, the effects of some parameters such as the alcohol-to-oil molar ratio (6:1, 9:1, 12:1), the CaO catalyst concentration (3%, 5% and 7% w/w), and the reaction time using ultrasonication (10, 25, 40 min) on the rate of conversion of fatty acids to methyl ester (biodiesel) were studied. The results showed that by increasing the molar ratio into the range between 6:1 and 9:1, the conversion percentage first increased and then its value followed a fixed trend. By increasing the catalyst concentration to about 5%, the conversion percentage increased significantly, and then remained constant. By increasing the time from 10 to 25 min, the conversion percentage increased by 20.19%, but from 25 to 40 min, no significant difference was observed. Moreover, all of the properties of C. australis methyl ester were found to meet the requirements of EN 14214 (European Committee for Standardization) biodiesel standards.

Acknowledgements

The Research Council of Shahrekord University is thankfully acknowledged for their financial support for conducting this study (grant no. 96GRN1M1796). Also, the authors express their thankful regards to Tarbiat Modares University (http://www.modares.ac.ir) for financial support given under the IG/39705 grant for Renewable Energies of Modares research group.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the Shahrekord University.

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