Biodiesel production from crude jatropha oil using a highly active heterogeneous nanocatalyst by optimizing transesterification reaction parameters

ANR, Reddy and Saleh, A. A. and Islam, Md. Saiful and Hamdan, S. and Maleque, Md. Abdul (2016) Biodiesel production from crude jatropha oil using a highly active heterogeneous nanocatalyst by optimizing transesterification reaction parameters. Energy & Fuels, 30 (1). pp. 334-343. ISSN 0887-0624 E-ISSN 1520-5029

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Abstract

Various heterogeneous catalysts are often used to produce biodiesel from non-edible crude oils. In this study a highly active heterogeneous calcium oxide (CaO) nanocatalyst with a diameter and surface area of 66 ± 3 nm and 90.61 m2/g, respectively, was synthesized from Polymedosa erosa (P. erosa) seashells through a alcination−hydration−dehydration technique. The nano-CaO catalysis impact was investigated in a two-step transesterification of triglycerides from crude Jatropha oil as a biodiesel along with other reaction parameters such as catalyst ratio, reaction time, and methanol to oil ratio. Fourier transform infrared spectroscopy, transmission electron microscope, X-ray diffraction, and Brunauer−Emmett−Teller spectrographic techniques were utilized to evaluate the CaO nanocatalyst spectral and structural characteristics. The effect of the transesterification parameters on reaction kinetics and Jatropha biodiesel (JB) yield were analyzed by employing a three-factor-five-level response surface methodology model based on a full factorial, two-block, central composite design. The adequacy of the predicted model was verified, and a 98.54% JB yield was reported at optimal parametric conditions, i.e., 0.02:1 (w/w) catalyst ratio, 133.1 min reaction time, and 5.15:1 mol/mol of methanol to the pretreated oil. An average of 95.8% JB yield was obtained from the catalyst reusability up to the sixth cycle. Fuel property test results of JB were found to be highly commensurate with the biodiesel standard EN 14214.

Item Type:	Article (Journal)
Additional Information:	6103/49707
Uncontrolled Keywords:	biodiesel,crude jatropha oil,heterogeneous catalysts
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ163.26 Energy conservation T Technology > TJ Mechanical engineering and machinery > TJ807 Renewable energy sources T Technology > TP Chemical technology > TP200 Manufacture and use of chemicals T Technology > TP Chemical technology > TP315 Fuel
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Prof Dr. Md Abdul Maleque
Date Deposited:	31 Mar 2016 09:53
Last Modified:	22 Dec 2016 16:13
URI:	http://irep.iium.edu.my/id/eprint/49707

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