Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Treating with a liquid or treating in a liquid phase,...
Patent
1998-01-08
2000-09-19
Dunn, Tom
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Treating with a liquid or treating in a liquid phase,...
502 22, 423460, 423461, B01J 2034, C09C 156, C01B 3102
Patent
active
061211796
ABSTRACT:
Contaminated adsorbent particles, preferably activated carbon particles, are regenerated in water at supercritical conditions. The particles are preferably mixed in water prior to treatment. The mixture is preferably heated to a temperature at least about 900.degree. F. (482.degree. C.) and pressurized to a pressure sufficient to achieve supercritical conditions for water. The mixture is preferably flowed through a first reactor for a time sufficient to substantially remove the organic contaminants from the particles. The particles are separated from the water and the mixture of water and organic contaminants may be transferred to a second reactor. Within the second reactor the organic contaminants are preferably substantially oxidized by supercritical water oxidation.
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Boere Jos A.
Humphries Richard W.
McBrayer, Jr. Roy N.
Tidlund Lars
Chematur Engineering AB
Donley Cynthia M
Dunn Tom
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