Chemical nature of alkali-promoted copper-cobalt-chromium oxide higher alcohol catalysts

Journal Article · Wed Mar 01 00:00:00 EST 1989 · Journal of Catalysis; (USA)

DOI:https://doi.org/10.1016/0021-9517(89)90078-X· OSTI ID:6414375

Sheffer, G R; Jacobson, R A; King, T S ^[1]

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1. Iowa State Univ., Ames (USA)

The chemical nature of alkali-promoted copper-cobalt-chromium higher alcohol catalysts has been evaluated as a function of calcination temperature by using X-ray diffraction and X-ray photolectron spectroscopy. Also investigated were the alkali-promoted mono- and bimetallic oxide systems. The activated catalysts was determined to consist of copper metal and a cobalt-chromium spinel. Oxygenate production correlated with the dispersion of copper metal in the catalyst. Poorer copper dispersion and a decrease in oxygenate formation were observed with increasing catalysts calcination temperature. There was no evidence of cuprous ions or cobalt metal in the activated catalysts; therefore, it is unlikely that component synergism is a result of alkyl chain growth on cobalt metal sites coupled with alcohol termination by CO molecularly adsorbed on copper(I) chromite.

• OSTI ID: 6414375
• Journal Information: Journal of Catalysis; (USA), Vol. 115:1; ISSN 0021-9517
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
10 SYNTHETIC FUELS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALCOHOLS
SYNTHESIS
CATALYSTS
SURFACE PROPERTIES
CHROMIUM
STRUCTURAL CHEMICAL ANALYSIS
COBALT
COPPER
CALCINATION
CHEMICAL REACTION YIELD
CHROMIUM OXIDES
COBALT OXIDES
COPPER OXIDES
DISTRIBUTION
FISCHER-TROPSCH SYNTHESIS
MICROSTRUCTURE
PHOTOELECTRON SPECTROSCOPY
SPINELS
SYNTHESIS GAS
TEMPERATURE DEPENDENCE
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMIUM COMPOUNDS
COBALT COMPOUNDS
COHERENT SCATTERING
COPPER COMPOUNDS
CRYSTAL STRUCTURE
DECOMPOSITION
DIFFRACTION
ELECTRON SPECTROSCOPY
ELEMENTS
FLUIDS
GASES
HYDROXY COMPOUNDS
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
METALS
MINERALS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS
SCATTERING
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
YIELDS
010408* - Coal
Lignite
& Peat- C1 Processes- (1987-)
100200 - Synthetic Fuels- Production- (1990-)
400201 - Chemical & Physicochemical Properties