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Title: Process for the regeneration of metallic catalysts

Abstract

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.

Inventors:
 [1];  [1]
  1. (Newark, DE)
Publication Date:
Research Org.:
Delaware Univ., Newark (USA)
OSTI Identifier:
863853
Patent Number(s):
US 4260518
Assignee:
University of Delaware (Newark, DE) OSTI
DOE Contract Number:  
EY-76-S-02-2579
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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/

Citation Formats

Katzer, James R., and Windawi, Hassan. Process for the regeneration of metallic catalysts. United States: N. p., 1981. Web.
Katzer, James R., & Windawi, Hassan. Process for the regeneration of metallic catalysts. United States.
Katzer, James R., and Windawi, Hassan. Thu . "Process for the regeneration of metallic catalysts". United States. doi:. https://www.osti.gov/servlets/purl/863853.
@article{osti_863853,
title = {Process for the regeneration of metallic catalysts},
author = {Katzer, James R. and Windawi, Hassan},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1981},
month = {Thu Jan 01 00:00:00 EST 1981}
}

Patent:

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