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Updated: Jun 6, 2026

Ultrasonic-Assisted Preparation of Biodiesel Products from Vegetable Oils
Published on: April 19, 2024
Use of experimental design to investigate biodiesel production by multiple-stage Ultra-Shear reactor
Nívea De Lima Da Silva1, Julian A G Garnica, César B Batistella
1School of Chemical Engineer, State University of Campinas (UNICAMP), Campinas, SP, Brazil. niveadelimadasilva@gmail.com
Abstract:
This work presents biodiesel production from soybean oil and bioethanol by multiple-stage Ultra-Shear reactor (USR). The experiments were carried out in the following conditions: reaction time from 6 to 12 min; catalyst concentration from 0.5% to 1.5% by weight of soybean oil; ethanol: soybean oil molar ratio from 6:1 to 10:1. The experimental design was used to investigate the influence of process variables on the conversion in biodiesel. The best ethyl ester conversion obtained was 99.26 wt.%, with ethanol:soybean oil molar ratio of 6:1, catalyst concentration of 1.35% and with 12 min of reaction time.
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