Production of ketones from pyroligneous acid of woody biomass pyrolysis over an iron-oxide catalyst

Dieni Mansur, Takuya Yoshikawa, Koyo Norinaga, Jun Ichiro Hayashi, Teruoki Tago, Takao Masuda

研究成果: ジャーナルへの寄稿記事

32 引用 (Scopus)

抄録

Catalytic upgrading of pyroligneous acid, by-product from slow pyrolysis of woody biomass for char production, was carried out using zirconia-supported iron-oxide catalysts under a steam atmosphere at temperatures ranging from 623 to 723 K, and the effect of ZrO2 content in the ZrO 2-FeOX catalysts on catalytic activity and ketone yields was investigated. It was demonstrated that hydroxyacetone and carboxylic acids (acetic and propionic acids) in the pyroligneous acid were converted into aliphatic ketones (acetone and 2-butanone) via a ketonization reaction over the ZrO2-FeOX catalyst. However, reaction inhibition by metal impurities in the pyroligneous acid such as potassium (K) and magnesium (Mg) was also observed. These metal impurities could be removed from the pyroligneous acid without changing the organic composition by using an ion-exchange resin. The removal of the metal impurities was effective in increasing the ketone yields. Moreover, as the W/F value (W: Amount of catalyst, and F: Flow rate of the pyroligneous acid in the feed) increased, the ketone yield increased up to approximately 30 C mol%, and the ketone fraction in the liquid product reached 55 C mol%.

元の言語英語
ページ(範囲)130-134
ページ数5
ジャーナルFuel
103
DOI
出版物ステータス出版済み - 1 1 2013

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Ketones
Iron oxides
Biomass
Pyrolysis
Catalysts
Acids
Metals
Impurities
Ion Exchange Resins
Propionic acid
Ion exchange resins
Propionates
Steam
Carboxylic Acids
Acetone
Carboxylic acids
Acetic acid
Acetic Acid
Zirconia
Magnesium

All Science Journal Classification (ASJC) codes

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

これを引用

Production of ketones from pyroligneous acid of woody biomass pyrolysis over an iron-oxide catalyst. / Mansur, Dieni; Yoshikawa, Takuya; Norinaga, Koyo; Hayashi, Jun Ichiro; Tago, Teruoki; Masuda, Takao.

:: Fuel, 巻 103, 01.01.2013, p. 130-134.

研究成果: ジャーナルへの寄稿記事

Mansur, Dieni ; Yoshikawa, Takuya ; Norinaga, Koyo ; Hayashi, Jun Ichiro ; Tago, Teruoki ; Masuda, Takao. / Production of ketones from pyroligneous acid of woody biomass pyrolysis over an iron-oxide catalyst. :: Fuel. 2013 ; 巻 103. pp. 130-134.
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abstract = "Catalytic upgrading of pyroligneous acid, by-product from slow pyrolysis of woody biomass for char production, was carried out using zirconia-supported iron-oxide catalysts under a steam atmosphere at temperatures ranging from 623 to 723 K, and the effect of ZrO2 content in the ZrO 2-FeOX catalysts on catalytic activity and ketone yields was investigated. It was demonstrated that hydroxyacetone and carboxylic acids (acetic and propionic acids) in the pyroligneous acid were converted into aliphatic ketones (acetone and 2-butanone) via a ketonization reaction over the ZrO2-FeOX catalyst. However, reaction inhibition by metal impurities in the pyroligneous acid such as potassium (K) and magnesium (Mg) was also observed. These metal impurities could be removed from the pyroligneous acid without changing the organic composition by using an ion-exchange resin. The removal of the metal impurities was effective in increasing the ketone yields. Moreover, as the W/F value (W: Amount of catalyst, and F: Flow rate of the pyroligneous acid in the feed) increased, the ketone yield increased up to approximately 30 C mol{\%}, and the ketone fraction in the liquid product reached 55 C mol{\%}.",
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AU - Tago, Teruoki

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AB - Catalytic upgrading of pyroligneous acid, by-product from slow pyrolysis of woody biomass for char production, was carried out using zirconia-supported iron-oxide catalysts under a steam atmosphere at temperatures ranging from 623 to 723 K, and the effect of ZrO2 content in the ZrO 2-FeOX catalysts on catalytic activity and ketone yields was investigated. It was demonstrated that hydroxyacetone and carboxylic acids (acetic and propionic acids) in the pyroligneous acid were converted into aliphatic ketones (acetone and 2-butanone) via a ketonization reaction over the ZrO2-FeOX catalyst. However, reaction inhibition by metal impurities in the pyroligneous acid such as potassium (K) and magnesium (Mg) was also observed. These metal impurities could be removed from the pyroligneous acid without changing the organic composition by using an ion-exchange resin. The removal of the metal impurities was effective in increasing the ketone yields. Moreover, as the W/F value (W: Amount of catalyst, and F: Flow rate of the pyroligneous acid in the feed) increased, the ketone yield increased up to approximately 30 C mol%, and the ketone fraction in the liquid product reached 55 C mol%.

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