skip to main content
Idioma:

Biodiesel production from raw castor oil

Dias, J.M. ; Araújo, J.M. ; Costa, J.F. ; Alvim-Ferraz, M.C.M. ; Almeida, M.F.

Energy (Oxford), 2013-05, Vol.53, p.58-66 [Periódico revisado por pares]

Kidlington: Elsevier Ltd

Texto completo disponível

Citações Citado por
  • Título:
    Biodiesel production from raw castor oil
  • Autor: Dias, J.M. ; Araújo, J.M. ; Costa, J.F. ; Alvim-Ferraz, M.C.M. ; Almeida, M.F.
  • Assuntos: Applied sciences ; Biodiesel ; Castor ; Castor oil ; Energy ; Exact sciences and technology ; Extraction ; grinding ; manual harvesting ; Mathematical models ; methanol ; Non-edible oil ; planning ; Plants (organisms) ; Raw ; Reaction time ; Response surface methodology ; Seeds ; temperature ; Transesterification ; yields
  • É parte de: Energy (Oxford), 2013-05, Vol.53, p.58-66
  • Notas: http://dx.doi.org/10.1016/j.energy.2013.02.018
    ObjectType-Article-2
    SourceType-Scholarly Journals-1
    ObjectType-Feature-1
    content type line 23
  • Descrição: A preliminary assessment of castor plant adaptability at Northern Portugal was performed, together with the evaluation of the extracted raw oil, without any refinement, for biodiesel production. Castor was seeded, plants grew and seeds were manually harvested after 2 years. Mechanical and chemical oil extraction procedures were evaluated. Biodiesel was produced by homogenous alkaline transesterification and experimental planning was conducted to evaluate the influence of temperature and reaction time in product yield and quality; 20 experiments were performed. A 54.1% (w/w) oil yield was obtained by Soxhlet extraction with methanol after grinding the seeds. Product yield ranged from 43.3 to 74.1% (w/w), biodiesel quality varied and the conditions that lead to the best product were established. Results indicate that, to achieve higher product yields and quality using raw oil, longer reaction times are required compared to what is generally reported for refined oil. Statistically significant predictive models were obtained to estimate product yield and quality as function of the studied reaction variables. The best temperature and reaction time to produce biodiesel from raw castor oil were 65 °C and 8 h, where models predict a product yield of 73.62% (w/w) and a purity of 83.41% (w/w). ► Preliminary results on castor plant adaptability in Northern Portugal are presented. ► Extraction of oil from seeds by mechanical and chemical methods is evaluated. ► New information regarding biodiesel production from raw castor oil is provided. ► Experimental planning and response surface methodology are used. ► Predictive models are obtained and best reaction conditions to produce biodiesel from raw oil are selected.
  • Editor: Kidlington: Elsevier Ltd
  • Idioma: Inglês
Links
Voltar para lista de resultados
Ir para página anteriorAnterior Resultado  4 AvançarIr para próxima página

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.