A novel technique for separating glycerine from palm oil-based biodiesel using ionic liquids

Maan Hayyan, Farouq S. Mjalli, Mohd Ali Hashim, Inas M. AlNashef

Research output: Contribution to journalArticle

185 Citations (Scopus)

Abstract

Biodiesel production from abundant bio-sources has drawn the attention of the academic as well as the industrial communities in recent years. However, one of the most serious obstacles for using biodiesel as an alternative fuel is the complicated and costly purification processes involved in its production. The difficulties involved in the separation of glycerine and other un-reacted reactants and by-products necessitate the development of new competent low cost separation processes for this purpose. In this work, a low cost quaternary ammonium salt-glycerine-based ionic liquid is proposed as a solvent for extracting glycerine from the transesterification biodiesel product. The separation technique was tested on palm oil-based produced biodiesel with KOH as a reaction catalyst. The study investigated the effect of DES:biodiesel ratio and the DES composition on the efficiency of the extraction process. The lab scale purification experiments proved the viability of the separation technique with a best DES:biodiesel molar ratio of 1:1 and a DES molar composition of 1:1 (salt:glycerine). The purified biodiesel fulfilled the EN 14214 and ASTM D 6751 standard specifications for biodiesel fuel in terms of glycerine content. A continuous separation process is suggested for industrial scale application.

Original languageEnglish
Pages (from-to)116-120
Number of pages5
JournalFuel Processing Technology
Volume91
Issue number1
DOIs
Publication statusPublished - Jan 2010

Fingerprint

Ionic Liquids
Palm oil
Biofuels
Biodiesel
Glycerol
Ionic liquids
Purification
Salts
palm oil
Alternative fuels
Transesterification
Chemical analysis
Ammonium Compounds
Byproducts
Costs
Specifications
Catalysts

Keywords

  • Biodiesel
  • Glycerine
  • Ionic liquids
  • Liquid-liquid extraction

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology
  • Chemical Engineering(all)

Cite this

A novel technique for separating glycerine from palm oil-based biodiesel using ionic liquids. / Hayyan, Maan; Mjalli, Farouq S.; Hashim, Mohd Ali; AlNashef, Inas M.

In: Fuel Processing Technology, Vol. 91, No. 1, 01.2010, p. 116-120.

Research output: Contribution to journalArticle

Hayyan, Maan ; Mjalli, Farouq S. ; Hashim, Mohd Ali ; AlNashef, Inas M. / A novel technique for separating glycerine from palm oil-based biodiesel using ionic liquids. In: Fuel Processing Technology. 2010 ; Vol. 91, No. 1. pp. 116-120.
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