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Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received June 20, 2013
Accepted September 12, 2013

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Catalytic synthesis of biodiesel from pongamia glabra over zirconia and its modified forms

Manjunatha Shyamsundar Sathgatta Zaheeruddin Mohamed Shamshuddin^† Jaya Narayan Sahu¹

Chemistry Research Laboratory, HMS Institute of Technology, NH-4, Kyathsandra, Tumkur 572 104, Karnataka, India ¹Department of Chemical Engineering, University of Malaya, Kualalampur, Malaysia

em_es@rediffmail.com

Korean Journal of Chemical Engineering, December 2013, 30(12), 2186-2190(5)
https://doi.org/10.1007/s11814-013-0177-6

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Abstract

Zirconia & its modified forms such as Mo(VI)/ZrO2, Pt-SO42-/ZrO2, MgO & MgO-ZrO2 mixed oxide were prepared by impregnation method. These catalysts were analyzed for surface acidity, surface basicity and crystallinity by using techniques such as TPD & powder X-ray diffraction. Mo(VI)/ZrO2, Pt-SO42-/ZrO2 were used as solid acid catalysts for esterification of pongamia glabra (karanja) oil to reduce the concentration of free fatty acid and MgO and MgO-ZrO2 mixed oxide were used as solid base catalysts for transesterification of karanja oil to produce biodiesel._x000D_ These zirconia catalysts were found to be highly efficient for the synthesis of biodiesel with more than 90% yield of biodiesel. These solid catalysts can be effectively reactivated and reused.

Keywords

Mo(VI)/ZrO2 Pt-SO42-/ZrO2 MgO MgO-ZrO2 Transesterification Biodiesel Karanja Oil Pongamia Glabra

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