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标题：Avaliao das propriedades físico-químicas e do desempenho das três geraes de biodiesel através do processo de transesterificao: uma reviso
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作者：Délis Cristina Palheta Cruz ; Ian Felipe Guedes Castro ; Rodrigo Luiz da Cruz Sehwartz 等
期刊名称：Research, Society and Development
电子版ISSN：2525-3409
出版年度：2022
卷号：11
期号：4
页码：1-21
DOI：10.33448/rsd-v11i4.27234
语种：English
出版社：Grupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências
摘要：With the search for alternative sources for the production of biofuels, biodiesel emerges as a favorite substitute to reduce the use of fossil fuels. Biodiesel production is so diverse that it has been categorized into three generations. The first includes food and non-edible crops, the second generation is biodiesel originated from organic residues and residual food substrates and the third generation is composed of microorganisms, such as yeast fungi, among others. The present work aims to present a literature review concerning the physicochemical properties of the three generations of biodiesel produced by the transesterification process. With the information collected, it was found that the raw materials of each generation have different characteristics and compositions. In general, the transesterification process showed efficiency according to the conversion percentages and by adapting the oils into biofuels according to the specifications. Among the three generations, vegetable oils showed better performance, except for castor oil biodiesel. Analyzing the possible replacement of diesel, the best biomasses were Portulaca (weed), hat napoleo and Jatropha, due to the characteristics of having low specific mass, adequate viscosity for the application, higher cetane number, high flash point, low temperature for the cloud point and high conversion. They are still characterized by being inedible, avoiding competitiveness with the food sector. Third-generation biodiesel did not perform well and some residual fat oil research has shown great promise.
关键词：Generation;Biodiesel;Physicochemical properties.