Acid-catalysed reactions between methanol and the bio-oil from the fast pyrolysis of mallee bark

Xun Hu, Richard Gunawan, Daniel Mourant, Caroline Lievens, Xiang Li, Shu Zhang, Weerawut Chaiwat, Chun Zhu Li

Research output: Contribution to journalArticleAcademicpeer-review

47 Citations (Scopus)

Abstract

This paper reports the acid-catalysed reactions between methanol and the bio-oil from the fast pyrolysis of mallee bark. The study focused on the reactions of the fatty acids, esters, furans and anhydrosugars in the bio-oil with methanol at 70-170°C in the presence of a solid acid catalyst Amberlyst 70. Under the experimental conditions employed, both simple acids and fatty acids in bio-oil could be converted to either methyl esters or lactone, respectively. High molar mass esters in the original bio-oil tend to undergo transesterification to produce methyl esters. Furan aldehydes such as furfural and 5-methyl-2-furancarboxaldehyde mainly underwent acetalisation to their acetals, while 5-(hydroxymethyl)furfural (HMF) could undergo acetalisation and/or etherification. HMF including its ethers and acetals could be further converted into methyl levulinate at elevated temperatures. In addition, methyl levulinate was also found to be the product from the methanolysis of other furans such as 2-furylmethanol and the C6 anhydrosugars in bio-oil.

Original languageEnglish
Pages (from-to)512-522
Number of pages11
JournalFuel
Volume97
DOIs
Publication statusPublished - 1 Jul 2012
Externally publishedYes

Fingerprint

Methanol
Oils
Pyrolysis
Furfural
Esters
Acids
Furans
Acetals
Fatty acids
Fatty Acids
Furaldehyde
Ethers
Molar mass
Transesterification
Lactones
Aldehydes
Catalysts
Temperature
methyl levulinate
5-hydroxymethylfurfural

Keywords

  • Acetalisation
  • Bio-oil
  • Esterification
  • Mallee bark
  • Transesterification
  • ITC-ISI-JOURNAL-ARTICLE

Cite this

Hu, Xun ; Gunawan, Richard ; Mourant, Daniel ; Lievens, Caroline ; Li, Xiang ; Zhang, Shu ; Chaiwat, Weerawut ; Li, Chun Zhu. / Acid-catalysed reactions between methanol and the bio-oil from the fast pyrolysis of mallee bark. In: Fuel. 2012 ; Vol. 97. pp. 512-522.
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abstract = "This paper reports the acid-catalysed reactions between methanol and the bio-oil from the fast pyrolysis of mallee bark. The study focused on the reactions of the fatty acids, esters, furans and anhydrosugars in the bio-oil with methanol at 70-170°C in the presence of a solid acid catalyst Amberlyst 70. Under the experimental conditions employed, both simple acids and fatty acids in bio-oil could be converted to either methyl esters or lactone, respectively. High molar mass esters in the original bio-oil tend to undergo transesterification to produce methyl esters. Furan aldehydes such as furfural and 5-methyl-2-furancarboxaldehyde mainly underwent acetalisation to their acetals, while 5-(hydroxymethyl)furfural (HMF) could undergo acetalisation and/or etherification. HMF including its ethers and acetals could be further converted into methyl levulinate at elevated temperatures. In addition, methyl levulinate was also found to be the product from the methanolysis of other furans such as 2-furylmethanol and the C6 anhydrosugars in bio-oil.",
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Acid-catalysed reactions between methanol and the bio-oil from the fast pyrolysis of mallee bark. / Hu, Xun; Gunawan, Richard; Mourant, Daniel; Lievens, Caroline; Li, Xiang; Zhang, Shu; Chaiwat, Weerawut; Li, Chun Zhu.

In: Fuel, Vol. 97, 01.07.2012, p. 512-522.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - Hu, Xun

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AU - Zhang, Shu

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