Hydrodeoxygenation of 1-naphthol: activities and stabilities of molybdena and related catalysts

Journal Article · Tue Nov 01 04:00:00 EST 1983 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(83)90095-7· OSTI ID:5273074

Vogelzang, M W ^[1]; Li, C L; Schuit, G C.A.; Gates, B C; Petrakis, L

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1. Univ. of Delaware, Newark

Hydrodeoxygenation (HDO) of 1-naphthol catalyzed by Mo/..gamma..-Al/sub 2/O/sub 3/ and Ni-Mo/..gamma..-Al/sub 2/O/sub 3/ was investigated with a flow reactor operated at 225/sup 0/C and 120 atm. The oxidic forms of the catalysts were more active than the sulfidic forms. The catalysts were deactivated during operation, evidently by water formed in the HDO reaction. The selectivity changed markedly during the deactivation, the HDO reactions becoming markedly slower and the hydrogenation reactions only slightly slower. The deactivated oxidic and sulfidic catalysts could be reversibly regenerated by treatment with H/sub 2/ and H/sub 2/S in H/sub 2/, respectively. The catalyst surfaces are suggested to incorporate two kinds of catalytic sites, one catalyzing direct HDO, the other aromatic ring hydrogenation. These sites are suggested to be anion vacancies, susceptible to inhibition by bonding of H/sub 2/O. 23 references, 4 figures.

• OSTI ID: 5273074
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 84:1; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL LIQUEFACTION
CONDENSED AROMATICS
CYCLOALKANES
CYCLOHEXANE
DATA
DEACTIVATION
DISPERSIONS
ELEMENTS
EXPERIMENTAL DATA
GAS CHROMATOGRAPHY
HIGH PRESSURE
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
HYDROGENATION
HYDROXY COMPOUNDS
INFORMATION
KETONES
LIQUEFACTION
METALS
MICROANALYSIS
MIXTURES
MOLYBDENUM
NAPHTHALENE
NAPHTHOLS
NICKEL
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
OXIDES
OXYGEN COMPOUNDS
PHENOLS
PRESSURE DEPENDENCE
SAMPLING
SEPARATION PROCESSES
SOLVENTS
SORPTIVE PROPERTIES
SPECIFICITY
SULFIDATION
SULFIDES
SULFUR COMPOUNDS
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
TETRALIN
THERMOCHEMICAL PROCESSES
TIME DEPENDENCE
TRANSITION ELEMENTS
YIELDS