Optimization of Allyl Alcohol Production from Glycerol over Iron Oxide Catalyst

DOI Web Site Web Site 26 References Open Access
  • FUJITSUKA Hiroyasu
    Dept. of Chemical Science and Technology, Tokyo Institute of Technology
  • TERAI Kazuhiro
    Research Group of Chemical Engineering, Div. of Chemical Process Engineering, Faculty of Engineering, Hokkaido University
  • HAYASHI Masanori
    Dept. of Chemical Science and Technology, Tokyo Institute of Technology
  • YOSHIKAWA Takuya
    Research Group of Chemical Engineering, Div. of Chemical Process Engineering, Faculty of Engineering, Hokkaido University
  • NAKASAKA Yuta
    Research Group of Chemical Engineering, Div. of Chemical Process Engineering, Faculty of Engineering, Hokkaido University
  • MASUDA Takao
    Research Group of Chemical Engineering, Div. of Chemical Process Engineering, Faculty of Engineering, Hokkaido University
  • TAGO Teruoki
    Dept. of Chemical Science and Technology, Tokyo Institute of Technology

Bibliographic Information

Other Title
  • 酸化鉄触媒を用いたグリセリンからのアリルアルコール選択合成反応系の最適化

Search this article

Description

<p>Glycerol is a major by-product of biodiesel production and has attracted great interest as a precursor for the preparation of various valuable chemicals. Conversion of glycerol over α-Fe2O3 catalyst in a fixed-bed flow reactor was investigated to understand the catalytic activity of iron oxide for the selective production of allyl alcohol. Addition of formic acid to the glycerol feed was effective in improving allyl alcohol production because decomposition on the catalyst formed hydrogen atoms, which were consumed in dehydroxylation of glycerol and reduction of α-Fe2O3 to Fe3O4 during glycerol conversion. Moreover, the allyl alcohol yield was further increased using potassium-loaded α-Fe2O3 catalyst, which was attributed to change in the acid sites. The original acid sites of α-Fe2O3, mainly Lewis acid sites, were occupied by potassium, and Brønsted acid sites formed during glycerol conversion. To further enhance the allyl alcohol yield, we attempted to minimize the polymerization reaction by optimizing the potassium loading, Wcat/Fglycerol value (i.e., contact time), and reaction temperature. The highest allyl alcohol yield of 39.8 C-mol% was achieved over 1 mol% potassium-loaded α-Fe2O3 at 623 K and with Wcat/Fglycerol of 1 h.</p>

Journal

References(26)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top