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Nickel/vanadium interactions on cracking catalyst

Journal Article · · Ind. Eng. Chem. Res.; (United States)
DOI:https://doi.org/10.1021/ie00081a007· OSTI ID:6315672
;
Major economic incentives exist for processing resid containing high levels of nickel and vanadium in catalytic crackers. The amount of resid which can be fed to current units is limited by the cracking catalyst's ability to rapidly deactivate the deposited metals and thus prevent excessive coke and gas formation. Development of more metals-tolerant cracking catalyst would be aided by knowledge of the behavior of nickel and vanadium on the surface of cracking catalyst. Toward this goal, the authors have investigated the behavior of these metals on a commercially available cracking catalyst. It has been found that nickel can occupy several types of sites on the cracking catalyst surface. Different metal-impregnation compounds and techniques can influence which sites are occupied. Some nickel sites were found to be more active for coke and gas production than others. Vanadium was found to interact with nickel in a manner which inhibits the deactivation behavior of nickel. This result indicates that metals-resistant cracking catalyst must be evaluated in the presence of both nickel and vanadium.
Research Organization:
Amoco Oil Co., Amoco Research Center, Naperville, IL (US)
OSTI ID:
6315672
Journal Information:
Ind. Eng. Chem. Res.; (United States), Journal Name: Ind. Eng. Chem. Res.; (United States) Vol. 27:9; ISSN IECRE
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010409* -- Coal
Lignite
& Peat-- Pyrolysis & Carbonization-- (1987-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COKE
COKING PLANTS
CRACKING
DECOMPOSITION
DEPOSITION
ELEMENTS
FLUIDS
GASES
INDUSTRIAL PLANTS
KINETICS
METALS
NICKEL
PYROLYSIS
REACTION KINETICS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
VANADIUM