Synthesis of biodiesel from waste cooking oil using immobilized lipase in fixed bed reactor

Análise de viabilidade econômica da participação de cooperativas populares na cadeia de fornecimento de óleo residual de fritura a fábricas de biodiesel

“…Além disso, esse biocombustível possui propriedades semelhantes às do óleo diesel produzido a partir de petróleo e pode ser usado diretamente nos motores a diesel atuais ou usado como uma mistura com óleo diesel bruto (Wassell Jr. e Dittmer, 2006;Vicente, et al, 2007, Helwani et al, 2009. Por esta razão, o biodiesel tem recentemente atraído atenção, em diversos países, devido à sua disponibilidade, renovabilidade, não-toxicidade, melhor qualidade das emissões e sua biodegradabilidade (Chen et al, 2009;Demirbas, 2009;Wei Li et al, 2009;Hayyan et al, 2010;Liu et al, 2010;Patil et al, 2010).…”

Biodiesel Fuel Production by Enzymatic Transesterification of Oils: Recent Trends, Challenges and Future Perspectives

“…Attention has turned to determining the operational and hydrodynamic conditions that maximize the yield in an industrially feasible immobilized system. Chen et al reported an efficient system for continual production of biodiesel fuel by methanolysis of waste cooking oil (WCO) using immobilized Candida lipase in a three-step fixed bed reactor (Chen et al, 2009). They have explored the effect of lipase, solvent, water, temperature, operational stability and flow of the reaction mixture on the synthesis of biodiesel.…”

“…There are many possible raw materials with a potential to obtain biodiesel. Generally, the main feedstock for biodiesel production can be divided in: 1) Vegetable oils such as sunflower oil (Dizge et al, 2009;Modi et al, 2007), soybean oil (Guan et al, 2010;Rodrigues et al, 2010), rapeseed oil Watanabe et al, 2007), jatropha oil Tamalampudi et al 2008), cotton seed oil (Royon et al,2007); 2) Animal fats such as tallow, lard (Da Cunha et al,, 2009;Ngo et al 2008); 3) Waste cooking oils and industrial waste oils (Chen et al, 2009;Halim et al, 2009). The fatty acid composition of animal fats is not favourable for biodiesel production, since they contain predominantly saturated fatty acids.…”

Bioresources for Third-Generation Biofuels

“…Similarly, bioethanol production for its direct use as a biofuel or as a biodiesel precursor requires huge amounts of corn grain or sugar cane. Nevertheless, industrial residues such as the vegetable oil refinery waste, as well as farming, forestry, livestock and domestic solid and liquid waste (Chen et al, 2009;Dizge et al, 2009) are widespread and huge sources of lipids and carbon. Wang et al proposed the soybean oil deodorizer distillate (SODD), a by-product from the soybean oil refineries that represents 0.3-0.5% of the soybean oil processed, to produce biodiesel.…”