Treatment of acidic palm oil for fatty acid methyl esters production

Adeeb Hayyan, Farouq S. Mjalli, Mohamed E S Mirghani, Mohd Ali Hashim, Maan Hayyan, Inas M. Alnashef, Saeed M. Al-Zahrani

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Acidic crude palm oil (ACPO) produced from palm oil mills with an acid value of 18 mg g-1 was considered to be a possible feedstock for biodiesel production. Due to its high acidity, conventional transesterification cannot be applied directly for biodiesel production. Methane sulphonic acid (MSA, CH3SO3H) is used to reduce the acidity prior to the alkaline transesterification reaction. The laboratory-scale experiments involved an MSA to ACPO dosage of 0.25-3.5 %, a molar ratio (methanol to ACPO) from 4: 1 to 20: 1, reaction temperature of 40-80°C, reaction time of 3-150 min, and stirrer speed of 100-500 min-1. The optimum esterification reaction conditions were 1 % of catalyst to ACPO, with a molar ratio of methanol to ACPO of 8: 1, a stirring speed of 300 min-1, for 30 min and at 60°C. Under these conditions, the FFA content was reduced from 18 mg g-1 to less than 1 mg g-1 and with a yield of 96 %. The biodiesel produced met the EN14214 standard specifications. MSA was recycled for three times without losing its activity. The biodiesel produced in a two-stage process has a low acid value (0.14 mg g-1).

Original languageEnglish
Pages (from-to)39-46
Number of pages8
JournalChemical Papers
Volume66
Issue number1
DOIs
Publication statusPublished - Jan 2012

Fingerprint

Palm oil
Fatty acids
Petroleum
Esters
Fatty Acids
Biofuels
Biodiesel
Transesterification
Acidity
Methanol
Acids
Sulfonic Acids
Esterification
Methane
Feedstocks
palm oil
Specifications
Catalysts
Temperature
Experiments

Keywords

  • acid value
  • acidic crude palm oil
  • biodiesel
  • esterification
  • methane sulphonic acid
  • transesterification

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Biochemistry
  • Industrial and Manufacturing Engineering
  • Materials Chemistry

Cite this

Hayyan, A., Mjalli, F. S., Mirghani, M. E. S., Hashim, M. A., Hayyan, M., Alnashef, I. M., & Al-Zahrani, S. M. (2012). Treatment of acidic palm oil for fatty acid methyl esters production. Chemical Papers, 66(1), 39-46. https://doi.org/10.2478/s11696-011-0102-6

Treatment of acidic palm oil for fatty acid methyl esters production. / Hayyan, Adeeb; Mjalli, Farouq S.; Mirghani, Mohamed E S; Hashim, Mohd Ali; Hayyan, Maan; Alnashef, Inas M.; Al-Zahrani, Saeed M.

In: Chemical Papers, Vol. 66, No. 1, 01.2012, p. 39-46.

Research output: Contribution to journalArticle

Hayyan, A, Mjalli, FS, Mirghani, MES, Hashim, MA, Hayyan, M, Alnashef, IM & Al-Zahrani, SM 2012, 'Treatment of acidic palm oil for fatty acid methyl esters production', Chemical Papers, vol. 66, no. 1, pp. 39-46. https://doi.org/10.2478/s11696-011-0102-6
Hayyan A, Mjalli FS, Mirghani MES, Hashim MA, Hayyan M, Alnashef IM et al. Treatment of acidic palm oil for fatty acid methyl esters production. Chemical Papers. 2012 Jan;66(1):39-46. https://doi.org/10.2478/s11696-011-0102-6
Hayyan, Adeeb ; Mjalli, Farouq S. ; Mirghani, Mohamed E S ; Hashim, Mohd Ali ; Hayyan, Maan ; Alnashef, Inas M. ; Al-Zahrani, Saeed M. / Treatment of acidic palm oil for fatty acid methyl esters production. In: Chemical Papers. 2012 ; Vol. 66, No. 1. pp. 39-46.
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