Synthesis of alcohols from carbon oxides and hydrogen. VIII. A temperature-programmed reaction study of n-butanal on a Zn-Cr-O catalyst

Journal Article · Wed Jun 01 04:00:00 EDT 1988 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(88)90095-4· OSTI ID:7054838

Lietti, L; Botta, D; Forzatti, P; Mantica, E; Tronconi, E; Pasquon, I

The interaction of n-butanal with a Zn-Cr-O catalyst has been studied by temperature-programmed reaction. Using combined GC, GC-FTIR, and GC-MS techniques, a large number of desorption products have been identified, including 1-butanol, C/sub 8/ and C/sub 12/ aldehydes, C/sub 7/ and C/sub 8/ ketones, and C/sub 3/, C/sub 4/, and C/sub 7/ olefins, as well as CO/sub 2/, dienes, trienes, aromatics, and light hydrocarbons. The formation of most products is explained by assuming surface reactions of two classes of intermediate species originating from the adsorption of n-butanal and from the surface aldol-like condensation of two molecules of n-butanal. Results indicate that the Zn-Cr oxide catalyst is active in performing aldehyde condensation, hydrogenation, hydrolysis, dehydrogenation, decarboxylation, and dehydration, along with isomerization and cracking reactions. Different functionalities are associated with different temperature ranges. The detected chemical functionalities are discussed with respect to their relevance to the direct synthesis of methanol and higher alcohols from CO and H/sub 2/.

• Research Organization: Dipartimento di Chimica Industriale ed Ingegneria Chimica G. Natta, Milano (Italy)
• OSTI ID: 7054838
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 111:2; ISSN JCTLA
• Country of Publication: United States
• Language: English

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10 SYNTHETIC FUELS
ALCOHOLS
ALDEHYDES
ALKENES
BUTANOLS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CATALYSIS
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHROMATOGRAPHY
CHROMIUM COMPOUNDS
CHROMIUM OXIDES
CRACKING
DECOMPOSITION
DEHYDRATION
DEHYDROGENATION
DESORPTION
ELEMENTS
FOURIER TRANSFORMATION
GAS CHROMATOGRAPHY
HYDROCARBONS
HYDROGEN
HYDROGENATION
HYDROLYSIS
HYDROXY COMPOUNDS
INFRARED SPECTRA
INTEGRAL TRANSFORMATIONS
ISOMERIZATION
KETONES
KINETICS
LYSIS
MASS SPECTROSCOPY
METHANOL
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PYROLYSIS
REACTION KINETICS
SEPARATION PROCESSES
SOLVOLYSIS
SPECTRA
SPECTROSCOPY
SYNTHESIS
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
TRANSFORMATIONS
TRANSITION ELEMENT COMPOUNDS
YIELDS
ZINC COMPOUNDS
ZINC OXIDES