Empty palm fruit bunches-A CO 2-based biorefinery concept

Sharifah Nabihah Syed Jaafar, Emmerich Haimer, Falk Liebner, Stefan Böhmdorfer, Antje Potthast, Thomas Rosenau

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Palm oil empty fruit bunches were separated by supercritical extraction coupled with a delignification process into four fractions, namely fatty acids, cellulose, lignin and hemicellulose. After extraction of the fatty acid fraction by supercritical carbon dioxide the material was delignified in a CO 2-assisted organosolv pulping process eThe fatty acidlfraction was characterized by GC-MS, all other fractions were characterized by FTIR, pyrolysis-GC-MS and by determination of the acid-insoluble lignin by the Klason method. The molecular weight of the residual cellulose fraction was examined by GPC. The investigated cascadeiprocess separates the^raw material into two polysaccharide fractions of approximately 40% and one lignin fraction of 18%. The fatty acid fraction amounted to 2% (w/w) of the raw material. The CO 2 extract consisted mainly of two fatty acids: hexadecanoic acid and octadecanoic acid. The raw material exhibited a lignin content of 22.4%. After pulping, the polysaccharide-enriched fractions exhibited a lignin content of 8.5% and 7.1% in the cellulose fraction and in the hemicellulose fraction, respectively. The lignin-enriched fraction had a lignin content of 84.6%. The molecular weight of the residual pulp was found to be around 1.6 x 105 g/mol. In this work, it was demonstrated that CO 2-assisted organosolv pulping with ethanol/water can effectively be used to separate the main fractions of oil palm empty fruit bunches. The pulping process can easily be combined with a preceding CO 2-extraction step and thus better utilize the high-pressure extraction equipment and increase the added value generated by the process.

Original languageEnglish
Pages (from-to)225-233
Number of pages9
JournalJournal of Biobased Materials and Bioenergy
Volume5
Issue number2
DOIs
Publication statusPublished - 2011
Externally publishedYes

Fingerprint

Lignin
Carbon Monoxide
Fruits
Fatty acids
Fatty Acids
Cellulose
Raw materials
Palm oil
Polysaccharides
Acids
Molecular weight
Delignification
Palmitic Acid
Carbon Dioxide
Pulp
Carbon dioxide
Pyrolysis
Ethanol
Water

Keywords

  • Biorefinery
  • Empty fruit bunches
  • Oil palm
  • Pulping
  • Supercritical carbon dioxide

ASJC Scopus subject areas

  • Biomaterials
  • Bioengineering
  • Renewable Energy, Sustainability and the Environment

Cite this

Empty palm fruit bunches-A CO 2-based biorefinery concept. / Syed Jaafar, Sharifah Nabihah; Haimer, Emmerich; Liebner, Falk; Böhmdorfer, Stefan; Potthast, Antje; Rosenau, Thomas.

In: Journal of Biobased Materials and Bioenergy, Vol. 5, No. 2, 2011, p. 225-233.

Research output: Contribution to journalArticle

Syed Jaafar, SN, Haimer, E, Liebner, F, Böhmdorfer, S, Potthast, A & Rosenau, T 2011, 'Empty palm fruit bunches-A CO 2-based biorefinery concept', Journal of Biobased Materials and Bioenergy, vol. 5, no. 2, pp. 225-233. https://doi.org/10.1166/jbmb.2011.1140
Syed Jaafar, Sharifah Nabihah ; Haimer, Emmerich ; Liebner, Falk ; Böhmdorfer, Stefan ; Potthast, Antje ; Rosenau, Thomas. / Empty palm fruit bunches-A CO 2-based biorefinery concept. In: Journal of Biobased Materials and Bioenergy. 2011 ; Vol. 5, No. 2. pp. 225-233.
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