Use of biodiesel from used oils in the last ten years: A review of the scientific literature (#471)

Authors

Magallanes, Angela

Barja, Ariana

Velásquez, Magda

Abstract

Biodiesel from used oils is a biofuel that was born out of concern about the increase in greenhouse gases and the poor disposal of waste used oils. Based on this, the present work aims to determine the performance of biodiesel from used oils according to the research journals published in scientific databases in the last 10 years. For this, a systematic review was carried out using mainly the ALICIA and Scielo databases, between the years 2012 and 2022. Through the exclusion and selection process, 23 articles were selected for their topicality and relevance. When analyzing the articles, the result was that to generate biodiesel, transesterification through NaOH is mostly used, being the one with the highest yield with 98.82%. On the other hand, the limitations that were visualized were the exclusion of several articles due to their age and their different methodologies. From the analysis carried out, it is inferred that having a high percentage of yield will generate an optimal biodiesel from used oils, which gives a high viability and benefit both for the environment and for society.