Reactivation and passivation of equilibrium FCCU catalyst
ChemCat has developed a new catalyst rejunvenation process, DEMET, which reactivates fluid catalytic cracking catalyst as it removes contaminant metals. The new process both prevents and reverses thermal deactivation, deactivation due to metals, and deactivation due to nitrogen compounds. It also increases both zeolite and total surface area, although the zeolite unit cell size remains unchanged. The rejuvenated catalyst makes 14% more gasoline and 70% less hydrogen than the unrejuvenated catalyst at constant coke yield and constant reactor temperature. The new process can reduce FCCU catalyst consumption by over 90%, and in the future, fresh catalyst will only be required to compensate for unit losses.
- OSTI ID:
- 5214027
- Report Number(s):
- CONF-8703120-
- Resource Relation:
- Conference: National Petroleum Refiners Association annual meeting, San Antonio, TX, USA, 29 Mar 1987; Other Information: Technical Paper AM-87-44
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
PETROLEUM
DEMETALLIZATION
ZEOLITES
CATALYTIC EFFECTS
CHEMICAL ACTIVATION
PASSIVATION
REGENERATION
CATALYSTS
CATALYTIC CRACKING
CHEMICAL REACTION YIELD
NITROGEN COMPOUNDS
PERFORMANCE
SURFACE PROPERTIES
THERMAL DEGRADATION
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
PYROLYSIS
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
YIELDS
020400* - Petroleum- Processing