Characterisation and evaluation of [gamma]-Al[sub 2]O[sub 3] supported hydroprocessing catalysts prepared through the precipitation from homogeneous solution (PFHS) method

Journal Article · Thu Jul 01 00:00:00 EDT 1993 · Journal of Catalysis; (United States)

OSTI ID:5846012

Kanta Rao, P ^[1]; Prasad, V V.D.N.; Somasekhara Rao, K ^[2]; Chary, K V.R. ^[3]

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1. Indian Institute of Chemical Technology, Hyderabad (India)
2. Andhra Univ. Postgraduate Centre, Nuzvid, A.P. (India)
3. Univ. of Kentucky, Lexington (United States)

Unpromoted and cobalt- or nickel-promoted [gamma]-Al[sub 2]O[sub 3] supported molybdenum sulfide catalysts were prepared by the precipitation from homogeneous solution (PFHS) method in a single step. These catalysts were characterised by surface area measurements, X-ray diffraction, and electron spin resonance spectroscopy. Studies were made on the effect of Mo loading on oxygen chemisorption, variation of O/Mo, equivalent metal sulfide area (EMSA) and surface coverage, variation of hydrodesulfurisation (HDS) and hydrogenation (HYD) activity, and correlation of oxygen uptake with HDS and HYD rates. These catalysts do not need presulfidation prior to HDS reaction and have higher activity, better characteristics than the catalysts prepared by conventional methods. 45 refs., 8 figs., 4 tabs.

• OSTI ID: 5846012
• Journal Information: Journal of Catalysis; (United States), Journal Name: Journal of Catalysis; (United States) Vol. 142:1; ISSN 0021-9517; ISSN JCTLA5
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400 -- Petroleum-- Processing
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CHEMISORPTION
COBALT
COHERENT SCATTERING
DESULFURIZATION
DIFFRACTION
ELECTRON SPIN RESONANCE
ELEMENTS
HYDROGENATION
MAGNETIC RESONANCE
METALS
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
NICKEL
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PRECIPITATION
REFRACTORY METAL COMPOUNDS
RESONANCE
SCATTERING
SEPARATION PROCESSES
SORPTION
SULFIDES
SULFUR COMPOUNDS
SURFACE AREA
SURFACE PROPERTIES
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
X-RAY DIFFRACTION