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Title: Rejuvenation and reuse of spent fluid cracking catalysts

Conference ·
OSTI ID:5463277
 [1]
  1. 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-
Resource Relation:
Conference: American Institute of Chemical Engineers spring national meeting, New Orleans, LA (USA), 6-10 Mar 1988; Other Information: Technical Paper 48D
Country of Publication:
United States
Language:
English