Produção Nacional
Biodiesel Production from Tucumã ( <i>Astrocaryum Aculeatum</i> Meyer) Almond Oil Applying the Electrolytic Paste of Spent Batteries as a Catalyst
2021; RELX Group (Netherlands); Linguagem: Inglês
10.2139/ssrn.3954364
ISSN1556-5068
AutoresFlávio A. de Freitas, Igor R. S. Mendonça, Silma de S. Barros, Wanison A.G. Pessoa, Ingrity S.C. Sá, Larissa M. Barroso, Edson Porto da Silva, Marco Antônio dos Santos Farias, Francisco Xavier Nobre, Paulo José Sousa Maia, Stefan Iglauer, Kaori K. Y. Isla,
Tópico(s)Enzyme Catalysis and Immobilization
ResumoImproper disposal of batteries can cause several environmental problems. Thus, this work aimed to apply the electrolytic paste (SB) of spent AA batteries as a catalyst. The SB was heat-treated (400 and 800 °C) and characterized by FTIR, XRF, XRD, TGA, SEM, and soluble alkalinity. Although the thermal treatment changed the constituent phases, a majority presence of manganese and zinc was observed in the materials. The extracted tucumã almond oil was also characterized, showing a high percentage of saturated fatty acids (75%) and high acidity (9.25 KOH/g oil). The untreated SB showed a high catalytic activity in transesterification reactions, resulting in good conversions (>97%). Temperature and reaction time were the most significant parameters, according to ANOVA. SB also showed high catalytic activity in the esterification of oleic acid, achieving good conversions (96%). Thus, the electrolytic paste proved to be a potentially efficient and eco-friendly catalyst for biodiesel production, even from highly acidic oils.
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