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• Rev. Ambient. Água 9 (1) • Mar 2014 • https://doi.org/10.4136/ambi-agua.1272   copy

Sweet almond (Prunus amygdalus "dulcis") seeds as a potential feedstock for Nigerian Biodiesel Automotive Project

Sementes de amêndoa doce (Prunus amygdalus "dulcis") como uma matéria-prima potencial para o Projeto Nigeriano de Biodiesel Automotive

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstracts

This work presents sweet almond (Prunus amygdalus "dulcis") seed oil (SASO) as a non-conventional feedstock for the preparation of biodiesel in Nigeria, rather than the traditional oils of palm, groundnut and palm kernel. SASO was extracted via the solvent method, pretreated to reduce the acid value, and transesterified using methanol (solvent) and sodium hydroxide (catalyst). The oil content and acid value of SASO were 51.45 ± 3.92% and 1.07 mg KOH/g, respectively. The fatty acid composition of SASO reveals the predominance of oleic acid (69.7%), linoleic acid (18.2%) and palmitic acid (9.3%). Specific fuel properties of sweet almond oil methyl esters (SAOME) were determined using standard test methods and were found to satisfy both EN 14214 and ASTM D6751 biodiesel standards; the cold flow properties were particularly outstanding (cloud point; -3ºC and pour point; -9ºC). SASO appears to offer great promise as a potential feedstock for biodiesel production in Nigeria.

sweet almond seeds; fuel properties; transesterification; oil; biodiesel; Nigeria

Este trabalho apresenta o óleo de semente (SASO) de amêndoa doce (Prunus Amygdalus "dulcis") como matéria-prima não convencional para a preparação de biodiesel na Nigéria em adição aos óleos tradicionais de amendoim e dendê. O SASO foi extraído usando o método de solvente, pré-tratado para reduzir o índice de acidez e transesterificado usando metanol (solvente) e hidróxido de sódio (catalisador). O teor de óleo e o valor ácido do SASO foram 51,45 ± 3,92% e 1,07 mg de KOH/g, respectivamente. A composição de ácidos graxos do SASO revela a predominância de ácido oleico (69,7%), ácido linoleico (18,2%) e ácido palmítico (9,3%). As propriedades combustíveis específicas de ésteres metílicos do óleo de amêndoa doce (SAOME) foram determinadas utilizando métodos de ensaio normalizados e satisfizeram tanto as normas de biodiesel EN 14214 e ASTM D6751, especialmente as propriedades de fluxo a frio foram excelentes (ponto de nuvem; -3ºC e ponto de fluidez; ‑9ºC). Conclusivamente, o SASO parece ser uma matéria-prima potencial para produção de biodiesel na Nigéria.

sementes de amêndoa doce; propriedades de combustível; transesterificação; petróleo; biodiesel; Nigéria

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Publication Dates

  • Publication in this collection
    07 Apr 2014
  • Date of issue
    Mar 2014

History

  • Accepted
    10 Mar 2014
  • Received
    03 Jan 2014
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Instituto de Pesquisas Ambientais em Bacias Hidrográficas Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi), Estrada Mun. Dr. José Luis Cembranelli, 5000, Taubaté, SP, Brasil, CEP 12081-010 - Taubaté - SP - Brazil
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