Acetaldehyde yield and reaction products in the catalytic destruction of gaseous ethanol

S. G. Poulopoulos; H. P. Grigoropoulou; C. J. Philippopoulos

doi:10.1023/A:1014933323762

Acetaldehyde yield and reaction products in the catalytic destruction of gaseous ethanol

S. G. Poulopoulos, H. P. Grigoropoulou, C. J. Philippopoulos

Department of Chemical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

The catalytic destruction of ethanol (0.5% v/v) over a typical three-way catalyst (Pt/Rh/Ce) and two base catalysts (1% CuO and 10% CuO on γ-Al₂O₃) was studied in a continuous flow reactor, under atmospheric pressure. The effect of the temperature (100-500°C) and of the oxygen concentration (0-10% v/v) on the operation of the tested catalysts and on the product profiles is presented. The formation of acetaldehyde during the destruction of ethanol, the main concern of ethanol addition to fuels, was extremely dependent on the oxygen concentration. It is noteworthy that more acetaldehyde was produced during the oxidation of ethanol in oxygen deficit conditions than during its decomposition in the absence of oxygen. Copper addition on γ-Al₂O₃ enhanced acetaldehyde formation, while less acetaldehyde amounts were produced over the noble metal catalyst.

Original language	English
Pages (from-to)	291-296
Number of pages	6
Journal	Catalysis Letters
Volume	78
Issue number	1-4
DOIs	https://doi.org/10.1023/A:1014933323762
Publication status	Published - Mar 1 2002

Keywords

Copper catalysts
Three-way catalysts

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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