Kinetics of oil palm empty fruit bunch phenolysis in the presence of sulfuric acid as a catalyst

Ali Ahmadzadeh, Sarani Zakaria

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Oil palm empty fruit bunch (EFB) was successfully phenolyzed in the presence of sulfuric acid as a catalyst at different temperatures, reaction times, and percentage of catalyst used. Sulfuric acid was used as catalyst (5 and 8%) at the reacting temperature of 110-150°C with various reaction times. The kinetics parameters along with the weight of reacted EFB and phenol were calculated using the second- and third-order reaction kinetics models. The weight of the reacted EFB in phenol shows that about 97% of EFB was liquefied during the reaction. However, only 70% of phenol was reacted with EFB. The kinetic studies showed that the EFB phenolysis in the presence of sulfuric acid followed a bimolecular type of the second-order reaction. The activation energy calculated from the Arrhenius equation was 50.7 and 18.06 kJ/mol when the catalyst concentration was 5 and 8%, respectively. It can be depicted that the activation energy decreased as the catalyst increased. The reaction enthalpy showed that the liquefaction of EFB in phenol had dominantly followed the endothermic reaction.

Original languageEnglish
Pages (from-to)3529-3533
Number of pages5
JournalJournal of Applied Polymer Science
Volume106
Issue number5
DOIs
Publication statusPublished - 5 Dec 2007

Fingerprint

Palm oil
Fruits
Sulfuric acid
Catalysts
Kinetics
Phenol
Phenols
Activation energy
Liquefaction
sulfuric acid
Kinetic parameters
Reaction kinetics
Enthalpy
Temperature

Keywords

  • Activation energy
  • Catalyst
  • EFB liquefaction
  • Kinetics
  • Phenol

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

Kinetics of oil palm empty fruit bunch phenolysis in the presence of sulfuric acid as a catalyst. / Ahmadzadeh, Ali; Zakaria, Sarani.

In: Journal of Applied Polymer Science, Vol. 106, No. 5, 05.12.2007, p. 3529-3533.

Research output: Contribution to journalArticle

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abstract = "Oil palm empty fruit bunch (EFB) was successfully phenolyzed in the presence of sulfuric acid as a catalyst at different temperatures, reaction times, and percentage of catalyst used. Sulfuric acid was used as catalyst (5 and 8{\%}) at the reacting temperature of 110-150°C with various reaction times. The kinetics parameters along with the weight of reacted EFB and phenol were calculated using the second- and third-order reaction kinetics models. The weight of the reacted EFB in phenol shows that about 97{\%} of EFB was liquefied during the reaction. However, only 70{\%} of phenol was reacted with EFB. The kinetic studies showed that the EFB phenolysis in the presence of sulfuric acid followed a bimolecular type of the second-order reaction. The activation energy calculated from the Arrhenius equation was 50.7 and 18.06 kJ/mol when the catalyst concentration was 5 and 8{\%}, respectively. It can be depicted that the activation energy decreased as the catalyst increased. The reaction enthalpy showed that the liquefaction of EFB in phenol had dominantly followed the endothermic reaction.",
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