Glycerolysis of two high free fatty acid waste materials for biodiesel production

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2015

Autores

E. T. Costa (Autor) Outra; M. F. Almeida (Autor) FEUP; J. M. Dias (Autor) FEUP; A. Matos (Autor) Outra

Ata de Conferência Internacional

Título: Wastes: Solutions, Treatments and Opportunities

Páginas: 55-60

3rd Edition of the International Conference on Wastes: Solutions, Treatments and Opportunities

Viana do Castelo, Portugal, 14-16 September 2015

Indexação

Scopus - 3 Citações

Classificação Científica

CORDIS: Ciências Tecnológicas

FOS: Ciências da engenharia e tecnologias

Projetos Associados

LEPABE - Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia

Outras Informações

ID Authenticus: P-00K-1C8

Abstract (EN): Biodiesel is generally produced from edible vegetable oils; however, some waste materials with high free fatty acids (FFA) content might be used if an adequate pretreatment technology is employed. The present study evaluated the use of glycerolysis for the pre-treatment of two high FFA waste materials, for further biodiesel production. The raw-materials were sludges, one from an urban wastewater treatment (sample one - acid value around 140 mg KOH g¿1) and one from a wastewater treatment of the dairy industry (sample two - acid value around 4.5 mg KOH g¿1). Biodiesel was further produced by alkaline transesterification. The glycerolysis (1:2 glycerol:oil (w/w), 200¿C, 100 rpm, 2 h) allowed to decrease between 85% to 96% the FFA content of the raw-materials. The best results were obtained for sample two; however, although with effective pretreatment, transesterification led to a maximum product purity of 67% and relatively low product yields. © 2015 Taylor & Francis Group, London.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6