Ketonization of hexanoic acid to diesel-blendable 6-undecanone on the stable zirconia aerogel catalyst

Yunsu Lee, Jae Wook Choi, Dong Jin Suh, Jeong Myeong Ha, Chang-Ha Lee

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The ketonization of hexanoic acid, which can be prepared by the fermentation of sugars, was performed in an effort to obtain the diesel-blendable high-carbon-number ketone 6-undecanone in this study. Based on observations of the leaching of highly active base catalysts, magnesium oxide and manganese oxide, the stable amphoteric solid catalyst zirconia was selected for the acid-rich reaction environment. A high-surface-area zirconia aerogel was prepared, which successfully ketonized hexanoic acid to 6-undecanone with high conversion, 72.3%, and high selectivity, 92.6%. The further optimization of the porous structures of zirconia led to possibly improved mass transfer with approximately 35 nm of pores, which improved the catalytic activity of zirconia.

Original languageEnglish
Pages (from-to)288-293
Number of pages6
JournalApplied Catalysis A: General
Volume506
DOIs
Publication statusPublished - 2015 Oct 5

Fingerprint

Aerogels
Zirconia
Catalysts
Acids
Magnesium Oxide
Manganese oxide
Magnesia
Ketones
Sugars
Fermentation
Leaching
Catalyst activity
Carbon
Mass transfer
zirconium oxide
hexanoic acid

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Process Chemistry and Technology

Cite this

Lee, Yunsu ; Choi, Jae Wook ; Suh, Dong Jin ; Ha, Jeong Myeong ; Lee, Chang-Ha. / Ketonization of hexanoic acid to diesel-blendable 6-undecanone on the stable zirconia aerogel catalyst. In: Applied Catalysis A: General. 2015 ; Vol. 506. pp. 288-293.
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abstract = "The ketonization of hexanoic acid, which can be prepared by the fermentation of sugars, was performed in an effort to obtain the diesel-blendable high-carbon-number ketone 6-undecanone in this study. Based on observations of the leaching of highly active base catalysts, magnesium oxide and manganese oxide, the stable amphoteric solid catalyst zirconia was selected for the acid-rich reaction environment. A high-surface-area zirconia aerogel was prepared, which successfully ketonized hexanoic acid to 6-undecanone with high conversion, 72.3{\%}, and high selectivity, 92.6{\%}. The further optimization of the porous structures of zirconia led to possibly improved mass transfer with approximately 35 nm of pores, which improved the catalytic activity of zirconia.",
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Ketonization of hexanoic acid to diesel-blendable 6-undecanone on the stable zirconia aerogel catalyst. / Lee, Yunsu; Choi, Jae Wook; Suh, Dong Jin; Ha, Jeong Myeong; Lee, Chang-Ha.

In: Applied Catalysis A: General, Vol. 506, 05.10.2015, p. 288-293.

Research output: Contribution to journalArticle

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AU - Lee, Chang-Ha

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AB - The ketonization of hexanoic acid, which can be prepared by the fermentation of sugars, was performed in an effort to obtain the diesel-blendable high-carbon-number ketone 6-undecanone in this study. Based on observations of the leaching of highly active base catalysts, magnesium oxide and manganese oxide, the stable amphoteric solid catalyst zirconia was selected for the acid-rich reaction environment. A high-surface-area zirconia aerogel was prepared, which successfully ketonized hexanoic acid to 6-undecanone with high conversion, 72.3%, and high selectivity, 92.6%. The further optimization of the porous structures of zirconia led to possibly improved mass transfer with approximately 35 nm of pores, which improved the catalytic activity of zirconia.

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