Hydroconversion of acetic acid over indium- and phosphorus-modified nickel/laponite catalysts

Gy Onyestyák, Sz Harnos, C. A. Badari, Sz Klébert, A. Kaszonyi, J. Valyon

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Modified catalysts were prepared from laponite (LT)-supported Ni catalyst. The catalysts were characterized by specific surface area, pore size distribution, in situ X-ray diffractometry and activity in the hydroconversion of acetic acid (AA) at 21 bar total pressure, WHSVAA = 0.5-3.0 h-1, and 260-380 °C reaction temperature. The modification generated LT-supported Ni2In or Ni2P active phases. The Ni2P catalyst showed hydrodecarbonylation activity. The Ni2In/LT catalyst has a balanced hydrogenating activity, providing ethanol (EL) and H2O as main products. The EL formation was substantiated to proceed through acetaldehyde/vinyl alcohol intermediates.

Original languageEnglish
Pages (from-to)201-216
Number of pages16
JournalReaction Kinetics, Mechanisms and Catalysis
Volume115
Issue number1
DOIs
Publication statusPublished - Jun 28 2015

Keywords

  • Acetic acid hydroconversion
  • Ethanol
  • Ni/laponite
  • NiIn/laponite
  • NiP/laponite

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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