Structure of Co-Mo/UPSILON-Al/sub 7/O/sub 3/ catalysts and relationship to HDS and hydrogenation activity. [Hydrodesulfurization (HDS)]

Conference · Wed Sep 01 00:00:00 EDT 1982 · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)

OSTI ID:5493948

Bennet, B A ^[1]; Chadwick, D; Jawahery, A R; Breysse, M; Vrinat, M

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1. Imperial Coll., London, England

From Mossbauer spectroscopy studies of catalysts of typical industrial compositions and activity measurements it was shown that catalysts containing the ''Co-Mo-S'' phase have relatively higher hydrodesulfurization (HDS) activities. It was also found that the use of Co in the first impregnation step favored the formation of Co/sub 9/S/sub 8/ (in addition to Co in alumina), while the reverse impregnation order produced mainly the ''Co-Mo-S'' phase. Avoiding Co/sub 3/O/sub 4/ formation in the oxide precursor was important for the formation of the ''Co-Mo-S'' phase and this was achieved by the impregnation of Mo before Co. There was also evidence that when Co was used in the second impregnation step, there was significant Mo, Co interaction. This interaction my produce a CoMo surface phase which is disordered and well dispersed and sulfides to the ''Co-Mo-S'' phase. (JMT)

• OSTI ID: 5493948
• Report Number(s): CONF-820909-Vol.1
• Journal Information: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States), Vol. 27:3; Conference: National meeting of the American Chemical Society, Kansas City, MO, USA, 12 Sep 1982
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CATALYSTS
CHEMICAL PROPERTIES
PHASE STUDIES
COBALT COMPOUNDS
CATALYTIC EFFECTS
MOLYBDENUM COMPOUNDS
PETROLEUM
DESULFURIZATION
SULFIDES
CHEMICAL REACTIONS
COBALT
MOLYBDENUM
SPECTROSCOPY
CHALCOGENIDES
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
METALS
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
020400* - Petroleum- Processing
400201 - Chemical & Physicochemical Properties