Reactivation of iridium-containing catalysts

Patent · Tue Oct 10 04:00:00 EDT 1989

OSTI ID:7261128

Boyle, J P

This patent describes an improvement in a process for the catalytic conversion of hydrocarbons. The improvement comprising: contacting the substantially coke-depleted catalyst with a gas containing from about 300 to about 10,000 vppm of a chlorinated compound and from about 0.3 to about 5 vol.% of oxygen at a temperature of at least about 460{sup 0}C. under essentially stagnant gas conditions for at least about 1 hour and repeating this procedure at least two additional times to redisperse the agglomerated iridium, thereby obtaining a substantially coke-depleted and reactivated iridium-containing catalyst.

• Assignee: Exxon Research and Engineering Co., Florham Park, NJ
• Patent Number(s): US 4872970
• Application Number: PPN: US 7248512A
• OSTI ID: 7261128
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
CATALYSTS
CATALYTIC CRACKING
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COKE
CRACKING
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
HALIDES
HALOGEN COMPOUNDS
IRIDIUM CHLORIDES
IRIDIUM COMPOUNDS
PETROLEUM
PYROLYSIS
REDUCTION
REFRACTORY METAL COMPOUNDS
REGENERATION
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS