Attrition resistant catalysts and sorbents based on heavy metal poisoned FCC catalysts

Patent · Fri Jan 01 04:00:00 EST 1999

OSTI ID:872407

Gangwal, Santosh ^[1]; Jothimurugesan, Kandaswamy ^[2]

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1. Cary, NC
2. Hampton, VA

A heavy metal poisoned, spent FCC catalyst is treated by chemically impregnating the poisoned catalyst with a new catalytic metal or metal salt to provide an attrition resistant catalyst or sorbent for a different catalytic or absorption processes, such as catalysts for Fischer-Tropsh Synthesis, and sorbents for removal of sulfur gasses from fuel gases and flue-gases. The heavy metal contaminated FCC catalyst is directly used as a support for preparing catalysts having new catalytic properties and sorbents having new sorbent properties, without removing or "passivating" the heavy metals on the spent FCC catalyst as an intermediate step.

• Research Organization: Hampton University
• DOE Contract Number: FG22-95MT95011
• Assignee: Research Triangle Institute (Research Triangle Park, NC)
• Patent Number(s): US 5928980
• OSTI ID: 872407
• Country of Publication: United States
• Language: English

Related Subjects

/502/
absorption
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attrition
attrition resistant
based
catalyst
catalysts
catalytic
catalytic metal
chemically
contaminated
directly
fcc
fcc catalyst
fischer-tropsh
flue-gases
fuel
fuel gas
fuel gases
gases
gasses
heavy
heavy metal
heavy metals
impregnating
intermediate
metal
metal poisoned
metal salt
metals
passivating
poisoned
preparing
processes
properties
provide
removal
removing
resistant
resistant catalyst
resistant catalysts
salt
sorbent
sorbents
sorption process
spent
step
sulfur
sulfur gas
support
synthesis
treated