Application of waste eggshell as low-cost solid catalyst for biodiesel production

Published Date
June 2009, Vol.100(11):2883–2885, doi:10.1016/j.biortech.2008.12.039

Author 

• Ziku Wei ^a,b
 
• Chunli Xu ^a,b,,
 
• Baoxin Li ^c

• aKey Laboratory of Applied Surface and Colloid Chemistry (Shaanxi Normal University), Ministry of Education, Xi’an 710062, PR China
• bSchool of Chemistry and Materials Science, Shaanxi Normal University, Chang’an South Road 199, Xi’an 710062, PR China
• cKey Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an, 710062, PR China

Received 11 September 2008. Revised 18 December 2008. Accepted 18 December 2008. Available online 7 February 2009.

Abstract

Waste eggshell was investigated in triglyceride transesterification with a view to determine its viability as a solid catalyst for use in biodiesel synthesis. Effect of calcination temperature on structure and activity of eggshell catalysts was investigated. Reusability of eggshell catalysts was also examined. It was found that high active, reusable solid catalyst was obtained by just calcining eggshell. Utilization of eggshell as a catalyst for biodiesel production not only provides a cost-effective and environmental friendly way of recycling this solid eggshell waste, significantly reducing its environmental effects, but also reduces the price of biodiesel to make biodiesel competitive with petroleum diesel.

Keywords

Eggshell waste

Biodiesel

Catalysis

Heterogeneous catalysis

Transesterification

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  Corresponding author. Address: School of Chemistry and Materials Science, Shaanxi Normal University, Chang’an South Road 199, Xi’an 710062, PR China. Tel.: +86 29 85300970; fax: +86 29 85307774.

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