Optimized conventional and ultrasound-assisted ethyl transesterification of jatropha (Jatropha curcas) and palm (Elaeis guineensis) oil mixtures

Autor(es)

Saavedra, Thony Arce ^{[1, 2]} ; Bueno-Borges, Larissa Braga ^{[1, 3]} ; Sangaletti-Gerhard, Naiane ^[1] ; de Alencar, Severino Matias ^[1] ; Bismara Regitano-d'Arce, Marisa Aparecida ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Luiz de Queiroz Coll Agr, Dept Agrifood Ind Food & Nutr, Lab Oils & Fats, BR-13418900 Piracicaba, SP - Brazil

^[2] Univ Nacl Autonoma Chota, Fac Ciencias Agr, Escuela Profes Ingn Agroind, Chota - Peru

^[3] Univ Sao Paulo, Dept Entomol & Acarol, Lab Pathol & Microbial Control, Luiz de Queiroz Coll Agr, Piracicaba, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Chemical Engineering Communications; SEP 2021.
• Citações Web of Science: 0

Resumo

While biodiesel from jatropha oil is oxidation-sensitive and fluid, palm oil-biodiesel is more stable, but with sub-optimal fluid dynamics. Mixing these oils before reaction could be advantageous for reducing steps in production while generating biodiesel with desired cold-flow and stability properties. Here, we performed central composite designs to optimize the transesterification of jatropha and palm oil mixtures via conventional alkaline (CT) and ultrasound-assisted transesterification (UT), assessing the physicochemical properties of the biodiesel. Acid esterification of oil mixtures was followed by transesterification with NaOH and ethanol. The two-step conversion of jatropha and palm oil binary mixtures was successful. UT resulted in 93%-time reduction (4 min) in comparison to CT (60 min). The increased presence of jatropha oil improved the fluid dynamics of biodiesel. UT is a promising technology for synthesizing biodiesel in less time. The transesterification of binary mixtures is a direct and simple approach for reducing steps in biodiesel production. (AU)

• Processo FAPESP: 13/23469-4 - Viabilidade energética e valorização dos coprodutos da cadeia produtiva de biodiesel de óleo de pinhão manso utilizando o etanol como solvente e aceptor de acila
• Beneficiário: Naiane Sangaletti Gerhard
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 17/02819-8 - Desenvolvimento de protocolo de descontaminação para os componentes do equipamento Rancimat
• Beneficiário: Marisa Aparecida Bismara Regitano d'Arce
• Modalidade de apoio: Auxílio à Pesquisa - Regular