Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Inorganic carbon containing
Patent
1997-09-19
2000-09-05
Straub, Gary P.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Inorganic carbon containing
502417, 502418, 502423, 423210, 423230, 423235, 42324401, 42324403, 4232451, 95116, 95137, B01J 2118, B01J 2002, B01D 4700, C01B 1716
Patent
active
061142735
ABSTRACT:
An improved process is provided for the removal of sulfur oxides from gas or vapor media containing oxygen and H.sub.2 O by contacting the media with a catalytically-active carbonaceous char. The improvement is provided by the use of a catalytically-active carbonaceous char prepared by low-temperature carbonization and oxidation of a bituminous coal or bituminous material at temperatures below 700.degree. C., followed by contact of the carbonized, oxidized char with one or more nitrogen-containing compounds at a temperature which is stable at, or is increasing to, temperatures less than 700.degree. C., and then increasing the temperature of the resultant material to or above 700.degree. C.
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Calgon Carbon Corporation
Straub Gary P.
Wong Melanie
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