Rejuvenation and reuse of spent fluid cracking catalysts
- ChemCat Corp., New Orleans, LA (US)
Refineries processing heavy, high metals feedstocks have reused other refineries' spent cracking catalyst for the past ten years without observing any yield debits. ChemCat has developed a process whereby a refinery can reuse its own spent catalyst without suffering any yield debits. The new DEMET process is being demonstrated in the world's first commercial fluid cracking catalyst rejuvenation and demetallization plant. The plant is located in Meraux, Louisiana and processes 20 tons/day of spent cracking catalyst for local refineries. The plant removes contaminant metals from zeolite catalysts, while simultaneously increasingly the zeolite and matrix surface areas. The demetallized catalyst has a higher activity and better selectivity than the undemetallized spent catalyst. The demetallized catalyst is also more hydrothermally stable than the spent catalyst. ChemCat's DEMET process enables refiners to eliminate the high cost of spent FCCU catalyst disposal and to significantly reduce their consumption and cost of fresh catalyst.
- OSTI ID:
- 5463277
- Report Number(s):
- CONF-880348--
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020400* -- Petroleum-- Processing
CATALYSTS
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
DEMETALLIZATION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCRACKING
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MINERALS
PETROLEUM
PHYSICAL PROPERTIES
PURIFICATION
PYROLYSIS
REGENERATION
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
ZEOLITES