Valorization of Wastes for Biodiesel Production: The Brazilian Case

Abstract

This chapter intends to bring an overview about the Brazilian researches and their contributions to the production of biodiesel from wastes. Currently, the main obstacles to spread the use of biodiesel are its high cost of production and the competition between biodiesel and food industries. So, the use of wastes plays an important role in reducing the biodiesel costs and reusing the materials that have no other applications, as deodorization residues, neutralization soap sticks, and animal fats, among others. Then, we present a review about Brazilian studies involving waste oils and fatty-acid-rich raw materials that helped the advancement in this field of knowledge during the last few years.

Glycerol and microwave-assisted catalysis: recent progress in batch and flow devices

“…1,2 First-generation biomass feedstocks are cultivated crops purposely for energy production, and in contrast, the issue of competition for food security arises. 14 Then comes the possibility of using second-generation raw materials from agricultural residues, 15 animals, [16][17][18][19] edible vegetables, 4,20,21 industrial 20,[22][23][24][25][26][27][28][29][30][31] and domestic. 10,32,33 And third and fourth-generation raw materials are microalgae.…”

Óleo Extraído Das Vísceras Tilápia: Pré-Tratamento, Produção De Biodiesel E Caracterização

“…O melhor biodiesel obtido pelos autores foi o fabricado com método de aquecimento e agitação. Nascimento et al (2019) avaliaram a viabilidade e os cenários do uso de biodiesel produzidos a partir de resíduos no Brasil. Como o maior obstáculo para produção de biodiesel está relacionado ao custo, o uso de biodieseis a partir de resíduos se mostra como um caminho viável para o crescimento do uso deste tipo de matéria-prima para o biodiesel.…”