Removal of residual catalyst from palm oil-based biodiesel using new ionic liquids analogous

P. Hui Min, K. Shahbaz, W. Rashmi, F. S. Mjalli, M. A. Hashim, I. M. Alnashef

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Biodiesel is produced through transesterification of triglyceride and methanol in the presence of alkali catalyst to form glycerol and biodiesel. Purification methods are implemented to remove undesired products that are retained inside biodiesel. The purified biodiesel grade should adhere to international standard specifications EN 41214 and ASTM D6751. Residual potassium hydroxide (KOH) catalyst is one of the impurities in produced biodiesel which can be removed by deep eutectic solvents (DESs). DESs were formed by a salt and two hydrogen bond donors (HBDs). In this work, choline chloride (ChCl) was used as the salt while glycerol and ethylene glycol were used as the hydrogen bond donors. Six DESs were synthesized with various compositions of salt and HBDs to remove KOH catalyst. All DESs (DES1, DES2, DES3, DES4, DES6 and DES7) were successful to reduce KOH content in biodiesel. The results had demonstrated the removal efficiency of KOH increase with the increase of DES:biodiesel molar ratios and mole fraction of HBD in the mixture of DES. The optimum DES to biodiesel molar ratio for each DES was determined. The result had indicated DES4 as the best solvent for removal of KOH from biodiesel.

Original languageEnglish
Pages (from-to)35-49
Number of pages15
JournalJournal of Engineering Science and Technology
Volume10
Issue numberSpecial Issue 2
Publication statusPublished - Apr 1 2015

Fingerprint

Palm oil
Biodiesel
Ionic liquids
Eutectics
Catalysts
Hydrogen bonds
Salts
Glycerol
Potassium hydroxide
Transesterification
Ethylene glycol
Purification
Methanol
Impurities
Specifications

Keywords

  • Biodiesel
  • Catalyst
  • Deep eutectic solvent
  • Removal
  • Transesterification

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Hui Min, P., Shahbaz, K., Rashmi, W., Mjalli, F. S., Hashim, M. A., & Alnashef, I. M. (2015). Removal of residual catalyst from palm oil-based biodiesel using new ionic liquids analogous. Journal of Engineering Science and Technology, 10(Special Issue 2), 35-49.

Removal of residual catalyst from palm oil-based biodiesel using new ionic liquids analogous. / Hui Min, P.; Shahbaz, K.; Rashmi, W.; Mjalli, F. S.; Hashim, M. A.; Alnashef, I. M.

In: Journal of Engineering Science and Technology, Vol. 10, No. Special Issue 2, 01.04.2015, p. 35-49.

Research output: Contribution to journalArticle

Hui Min, P, Shahbaz, K, Rashmi, W, Mjalli, FS, Hashim, MA & Alnashef, IM 2015, 'Removal of residual catalyst from palm oil-based biodiesel using new ionic liquids analogous', Journal of Engineering Science and Technology, vol. 10, no. Special Issue 2, pp. 35-49.
Hui Min, P. ; Shahbaz, K. ; Rashmi, W. ; Mjalli, F. S. ; Hashim, M. A. ; Alnashef, I. M. / Removal of residual catalyst from palm oil-based biodiesel using new ionic liquids analogous. In: Journal of Engineering Science and Technology. 2015 ; Vol. 10, No. Special Issue 2. pp. 35-49.
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