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

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Title: Production of ketones from pyroligneous acid of woody biomass pyrolysis over an iron-oxide catalyst
Authors: Mansur, Dieni Browse this author
Yoshikawa, Takuya Browse this author
Norinaga, Koyo Browse this author
Hayashi, Jun-ichiro Browse this author
Tago, Teruoki Browse this author →KAKEN DB
Masuda, Takao Browse this author →KAKEN DB
Keywords: Ketones
Pyroligneous acid
Woody biomass
Iron-oxide catalyst
Issue Date: Jan-2013
Publisher: Elsevier
Journal Title: Fuel
Volume: 103
Start Page: 130
End Page: 134
Publisher DOI: 10.1016/j.fuel.2011.04.003
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 ZrO2-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%.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 多湖 輝興

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