Catalytic decarboxylation of acetic acid with zirconia catalyst in supercritical water

Research output: Contribution to journalArticlepeer-review

58 Citations (Scopus)

Abstract

Reactions of acetic acid were conducted with alkali (KOH) and zirconia (ZrO2) catalysts in supercritical water (SCW) (673K and 25MPa-40MPa). For comparison, we also conducted the experiments without catalyst and/or water at the same reaction conditions. Decarboxylation of acetic acid with zirconia in supercritical water formed acetone, CO2, and water without forming any other compound. On the other hand, decomposition of acetic acid with alkali produced methane (CH4) and CO2 with acetone. Without water and/or catalyst, the main products were also CO2 and CH4 (without catalyst) or acetone (with ZrO2); however, by-products, such as a water-insoluble compound were formed. The structure of zirconia was changed during reaction in supercritical water. The rate of decarboxylation of acetic acid exerted an effect on the particle size of zirconia.

Original languageEnglish
Pages (from-to)149-156
Number of pages8
JournalApplied Catalysis A: General
Volume219
Issue number1-2
DOIs
Publication statusPublished - 2001 Oct 5

Keywords

  • Acetic acid
  • Alkali
  • Decarboxylation
  • Supercritical water
  • Zirconia

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology

Fingerprint Dive into the research topics of 'Catalytic decarboxylation of acetic acid with zirconia catalyst in supercritical water'. Together they form a unique fingerprint.

Cite this