The application of calcined natural dolomitic rock as a solid base catalyst in triglyceride transesterification for biodiesel synthesis

K. Wilson, Christopher Hardacre, A.F. Lee, J.M. Montero, L. Shellard

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

Natural dolomitic rock has been investigated in the transesterification of C-4 and C-8 triglycerides and olive oil with a view to determining its viability as a solid base catalyst for use in biodiesel synthesis. XRD reveals that the dolomitic rock comprised 77% dolomite and 23% magnesian calcite. The generation of basic sites requires calcination at 900 degrees C, which increases the surface area and transforms the mineral into MgO nanocrystallites dispersed over CaO particles. Calcined dolomitic rock exhibits high activity towards the liquid phase transesterification of glyceryl tributyrate and trioctanoate, and even olive oil, with methanol for biodiesel production.
Original languageEnglish
Pages (from-to)654-659
Number of pages6
JournalGreen Chemistry
Volume10
Issue number6
DOIs
Publication statusPublished - Jan 2008

ASJC Scopus subject areas

  • Chemistry(all)

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