Crab and cockle shells as heterogeneous catalysts in the production of biodiesel

Maniam, Gaanty Pragas and Boey, Peng-Lim and Abd Hamid, Shafida (2010) Crab and cockle shells as heterogeneous catalysts in the production of biodiesel. In: 4th International Conference on Postgraduate Education (ICPE 4). , 26 - 28 November 2010, Kuala Lumpur, Malaysia.

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Abstract

In the present study, the waste crab and cockle shells were utilized as source of calcium oxide to transesterify palm olein into methyl esters (biodiesel). Characterization results revealed that the main component of the shells are calcium carbonate which transformed into calcium oxide upon activated above 700 °C for 2 h. Parametric studies have been investigated and optimal conditions were found to be catalyst amount, 5 wt.% and methanol/oil mass ratio, 0.5:1. The waste catalysts perform equally well as laboratory CaO, thus creating another low-cost catalyst source for producing biodiesel. Reusability results confirmed that the prepared catalyst is able to be reemployed up to five times. Statistical analysis has been performed using a Central Composite Design to evaluate the contribution and performance of the parameters on biodiesel purity.

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	5980/8098
Uncontrolled Keywords:	Biodiesel; Heterogeneous catalyst; Transesterification; Methyl esters; Crab shell; Cockle shell
Subjects:	Q Science > Q Science (General) Q Science > QD Chemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Biotechnology
Depositing User:	Ms Rosyidah Taju Rahim
Date Deposited:	25 Nov 2011 13:07
Last Modified:	25 Nov 2011 13:07
URI:	http://irep.iium.edu.my/id/eprint/8098

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