Synthesis of aldehydes from synthesis gas over Na-promoted Mn-Ni catalysts

The synthesis of acetaldehyde and propionaldehyde from CO hydrogenation over NaMnNi catalysts has been studied. Coprecipitated NaMnNi catalysts exhibited high activities for the synthesis of acetaldehyde from CO hydrogenation and the synthesis' of propionaldehyde from addition of ethylene t...

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Bibliographic Details
Published in:Journal of catalysis 1991-04, Vol.128 (2), p.569-573
Main Authors: Chuang, Steven S.C., Pien, Shyh Ing
Format: Article
Language:English
Subjects:
01 COAL, LIGNITE, AND PEAT
010408 - Coal, Lignite, & Peat- C1 Processes- (1987-)
10 SYNTHETIC FUELS
100200 - Synthetic Fuels- Production- (1990-)
ACETALDEHYDE
ADDITIVES
ALDEHYDES
ALKALI METALS
ALKENES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
Catalysis
CATALYTIC EFFECTS
Catalytic reactions
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CHEMISORPTION
Chemistry
COPRECIPITATION
ELECTRON SPECTROSCOPY
ELEMENTS
ETHYLENE
Exact sciences and technology
General and physical chemistry
HYDROCARBONS
HYDROGEN
HYDROGENATION
IMPREGNATION
MANGANESE
METALS
METHANATION
MINERALS
NICKEL
NONMETALS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
PRECIPITATION
SEPARATION PROCESSES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SODIUM
SORPTION
SPECTROSCOPY
SYNTHESIS
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
TRANSITION ELEMENTS
X-RAY SPECTROSCOPY
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Description
Summary:The synthesis of acetaldehyde and propionaldehyde from CO hydrogenation over NaMnNi catalysts has been studied. Coprecipitated NaMnNi catalysts exhibited high activities for the synthesis of acetaldehyde from CO hydrogenation and the synthesis' of propionaldehyde from addition of ethylene to CO hydrogenation. In contrast, NaMnNi/SiO 2 catalysts prepared from coimpregnation showed mainly methanation and ethylene hydrogenation activities. The selectivities to acetaldehyde in CO hydrogenation were found to parallel the selectivities to propionaldehyde in ethylene addition. X-ray photoelectron spectroscopic studies revealed that reduction of the coprecipitated NaMnNi catalyst at 350°C led to the migration of Na ions onto the surface of the catalyst resulting in the suppression of hydrogen chemisorption on the catalyst.
ISSN:0021-9517
1090-2694
DOI:10.1016/0021-9517(91)90314-T