Low-Al zeolite beta as a heterogeneous catalyst in biodiesel production from microwave-assisted transesterification of triglycerides

Yu Yuan Wang, Duu Jong Lee, Bing Hung Chen

Research output: Contribution to journalConference articlepeer-review

11 Citations (Scopus)

Abstract

In this work microwave and reflux-assisted transesterification of triolein in methanol was carried out with alkaliloaded low-Al Zeolite Beta as catalyst. The results show that the alkali-T reated Zeolite Beta can effectively catalyze transesterification reaction of triglycerides to produce fatty acid ethyl esters (biodiesel), if Zeolite Beta has been properly modified with the alkali ion-exchange process. As a result, the final conversion yield over 90% could be obtained within an hour of reflux reaction. However, the durability of this Na-modified Zeolite Beta still has much room to be improved. In this work, this inferior catalytic durability is overcome by using the low-Al Zeolite Beta with a smaller particle size near 0.5μm. Consequently, for at least eight cycles, cyclic tests of these zeolite catalysts do not result in any significant decrease in catalysis in transesterification reaction. It is inferred that alkali cations existing in defect-sites of low-Al Zeolite Beta can be supplied to the surface of the catalysts during transesterification and enhance the catalysis.

Original languageEnglish
Pages (from-to)918-921
Number of pages4
JournalEnergy Procedia
Volume61
DOIs
Publication statusPublished - 2014 Jan 1
Event6th International Conference on Applied Energy, ICAE 2014 - Taipei, Taiwan
Duration: 2014 May 302014 Jun 2

All Science Journal Classification (ASJC) codes

  • Energy(all)

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