Process for the regeneration of metallic catalysts

Patent · Thu Jan 01 00:00:00 EST 1981

OSTI ID:863853

Katzer, James R ^[1]; Windawi, Hassan ^[1]

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1. Newark, DE

A method for the regeneration of metallic hydrogenation catalysts from the class consisting of Ni, Rh, Pd, Ir, Pt and Ru poisoned with sulfur, with or without accompanying carbon deposition, comprising subjecting the catalyst to exposure to oxygen gas in a concentration of about 1-10 ppm. intermixed with an inert gas of the group consisting of He, A, Xe, Kr, N.sub.2 and air substantially free of oxygen to an extent such that the total oxygen molecule throughout is in the range of about 10 to 20 times that of the hydrogen sulfide molecular exposure producing the catalyst poisoning while maintaining the temperature in the range of about 300.degree. to 500.degree. C.

• Research Organization: Delaware Univ., Newark (USA)
• DOE Contract Number: EY-76-S-02-2579
• Assignee: University of Delaware (Newark, DE)
• Patent Number(s): US 4260518
• OSTI ID: 863853
• Country of Publication: United States
• Language: English

Related Subjects

process
regeneration
metallic
catalysts
method
hydrogenation
consisting
pd
ru
poisoned
sulfur
accompanying
carbon
deposition
comprising
subjecting
catalyst
exposure
oxygen
gas
concentration
1-10
ppm
intermixed
inert
xe
kr
air
substantially
free
extent
total
molecule
throughout
range
10
20
times
hydrogen
sulfide
molecular
producing
poisoning
maintaining
temperature
300
degree
500
hydrogenation catalyst
oxygen gas
substantially free
inert gas
hydrogen sulfide
metallic catalyst
comprising subjecting
carbon deposition
metallic catalysts
/502/518/