High selective synthesis of acrolein from glycerol in high prebure and high temperature water

Masaru Watanabe, Toru Iida, Yuichi Aizawa, Hiroshi Inomata

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Glycerol reactions were conducted to synthesize acrolein, which is the raw material of acrylic reisn, in high temperature and high prebure water (573 to 673 K, saturated prebure or 34.5 MPa) using a batch and a flow apparatus. The main products were always acrolein and acetaldehyde. The experimental results revealed that ca. 80 % selectivity of acrolein was obtained at 90 % of glycerol conversion with H2SO4 in supercritical condition (673 K and 34.5 MPa). We also developed a simple model of glycerol conversion into acrolein and analyzed the kinetic parameters. The rate constant of acrolein decomposition is always higher than that of acrolein formation in the absence of acid catalyst. On the other hand, it was revealed that the rate constant of acrolein formation overcame that of acrolein decomposition by adding acid in supercritical condition.

Original languageEnglish
Title of host publicationJoint 20th AIRAPT and 43rd EHPRG International Conference on High Pressure Science and Technology
PublisherKarlsruhe Forschungszentrum Karlsruhe gmbH
ISBN (Print)9783923704491
Publication statusPublished - 2005
EventInternational Joint 20th AIRAPT and 43rd EHPRG International Conference on High Pressure Science and Technology - Karlsruhe, Germany
Duration: 2005 Jun 272005 Jul 1

Other

OtherInternational Joint 20th AIRAPT and 43rd EHPRG International Conference on High Pressure Science and Technology
CountryGermany
CityKarlsruhe
Period05/6/2705/7/1

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics

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