Conversion of Vegetable Oil to Biodiesel Using Ultrasonic Irradiation

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 14 Jul 2003 English Publisher:Oxford University Press (OUP)Journal:Chemistry Letters, volume 32, pages 716-717 (issn: 0366-7022, eissn: 1348-0715,

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Authors: Carmen Stavarache; Mircea Vinatoru; Rokuro Nishimura; Yasuaki Maeda;

doi: 10.1246/cl.2003.716 , 10.1002/chin.200350242

Conversion of Vegetable Oil to Biodiesel Using Ultrasonic Irradiation

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Abstract

Abstract The influence of low frequency ultrasounds (28 and 40 kHz) versus mechanical stirring on the transesterification reaction of neat vegetable oil with methanol under base-catalysis was studied and the results are presented. It was found that the optimized variables of 6:1 methanol/oil (mol/mol), 0.5% NaOH (wt/wt), and 40 kHz ultrasonic irradiation at 25 °C for 20 min gave a maximum isolated ester yield of 98%.

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