Acetone alkylation with ethanol over multifunctional catalysts by a borrowing hydrogen strategy

Gy Onyestyák, Gy Novodárszki, R. Barthos, Sz Klébert, Farkas Wellisch, A. Pilbáth

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Step by step alkylation of acetone (A) with ethanol (E) in a ratio of 1: 2 was investigated. A fixed bed flow-through reactor system was used at a total pressure of 21 bar and in the temperature range of 150-350 °C in inert He or a reducing H2 medium. Following the hydrogen borrowing methodology, two types of catalysts were prepared; using neutral activated carbon (AC) and alkaline hydrotalcite (HT) supports, namely 5 wt% Pd/AC in the presence of alkaline additives (10, 20 and 30 wt% KOH or 20% K3PO4); 9 wt% Cu/HT and 5 wt% Pd/HT. The catalysts were activated in a H2 flow at 350 °C. Different yields of mono- or dialkylated ketones were observed. In a hydrogen medium over the same catalyst systems the ketone products could be reduced to alcohols. In this study the Pd/HT catalyst seems to be the most promising for fuel production based on biomass fermentation.

Original languageEnglish
Pages (from-to)99502-99509
Number of pages8
JournalRSC Advances
Volume5
Issue number120
DOIs
Publication statusPublished - Jan 1 2015

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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