Hydrogenating properties of unsupported transition metal sulfides

Journal Article · Fri Dec 01 00:00:00 EST 1989 · Journal of Catalysis; (USA)

DOI:https://doi.org/10.1016/0021-9517(89)90287-X· OSTI ID:6842474

Lacroix, M; Boutarfa, N; Guillard, C; Vrinat, M; Breysse, M ^[1]

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1. Institut de Recherches sur la Catalyse, Villeurbanne Cedex (France)

Group VI and Group VIII transition metal sulfides (TMS) have been widely used in hydrotreating catalysis. In addition to hydrogenation reactions, these processes involve removal of sulfur (hydrodesulfurization: HDS) and nitrogen (hydrodenitrogenation: HDN). Until now, HDN has not received as much attention as HDS, probably because sulfur compounds have historically been of prime importance. As petroleum feedstocks dwindle, the need for hydroprocessing oils containing larger amounts of heteromolecules will increase and industry will require more active materials. For this purpose, researchers may either improve the current catalysts of develop a new generation of catalysts based on transition metal sulfides presenting higher activities, stabilities, and selectivities toward desired compounds. The objective of the present work is to classify the hydrogenation performances of well-defined unsupported transition metal sulfides. These catalysts have been chosen since their characterization by physiochemical techniques, mainly X-ray diffraction (XRD), is easier than that for supported materials. Actually, it has been shown in several cases that the catalytic properties are closely related to the crystalline structure and the stoichiometry of the different phases which can be encountered for a given element. The catalyst were tested in the hydrogenation of biphenyl (HN of BP) as well as in the hydrodesulfurization of dibenzothiophene (HDS of DBT) in order to compare the present results to previous studies. To evaluate the hydrogenating function, the HN of BP has been chosen preferably to the consecutive HN of BP resulting from the HDS of DBT.

• OSTI ID: 6842474
• Journal Information: Journal of Catalysis; (USA), Vol. 120:2; ISSN 0021-9517
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
01 COAL, LIGNITE, AND PEAT
BIPHENYL
HYDROGENATION
CATALYSTS
POLYCYCLIC SULFUR HETEROCYCLES
DESULFURIZATION
TRANSITION ELEMENT COMPOUNDS
CATALYTIC EFFECTS
ATMOSPHERIC PRESSURE
CADMIUM
COBALT
COPPER
HYDROGEN SULFIDES
NICKEL
PALLADIUM
PETROLEUM
REFINING
SULFIDES
X-RAY DIFFRACTION
ZINC
AROMATICS
CHALCOGENIDES
CHEMICAL REACTIONS
COHERENT SCATTERING
DIFFRACTION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROGEN COMPOUNDS
METALS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PLATINUM METALS
PROCESSING
SCATTERING
SULFUR COMPOUNDS
TRANSITION ELEMENTS
020400* - Petroleum- Processing
010402 - Coal
Lignite
& Peat- Purification & Upgrading