Vanadium poisoning effect on catalyst isolated
Extensive testing of commercial FCCU catalysts has shown that when all metals are removed by demetallizing the catalyst, the catalyst is effectively reactivated. But because vanadium is the primary metal associated with catalyst activity, it is important to understand the effect on catalyst activity when only the vanadium is removed. To isolate the vanadium effect on catalysts, ChemCat Corp. has performed tests on various nonzeolitic amorphous catalysts, zeolitic rare earth (REY) catalysts, and zeolitic ultra-stable (USY) catalysts where the vanadium was the only metal removed. Results were compared to reactivation by the Demet process, which effectively removes the vanadium as well as the nickel, iron, and sodium. Vanadium was removed from samples of FCCU catalyst obtained from two different refineries, and in each case, their catalyst activity and selectivity improved.
- Research Organization:
- ChemCat Corp., New Orleans, LA
- OSTI ID:
- 6690845
- Journal Information:
- Oil Gas J.; (United States), Vol. 85:9
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CATALYSTS
DEACTIVATION
DEMETALLIZATION
CATALYTIC CRACKING
PETROLEUM
VANADIUM
CATALYTIC EFFECTS
REMOVAL
AMORPHOUS STATE
FLUIDIZED BEDS
IRON
NICKEL
PETROLEUM REFINERIES
RARE EARTHS
REGENERATION
SAMPLING
SODIUM
ZEOLITES
ALKALI METALS
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
INDUSTRIAL PLANTS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MINERALS
PYROLYSIS
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
020400* - Petroleum- Processing
400201 - Chemical & Physicochemical Properties