Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture
Patent
1994-07-25
1997-10-07
Bos, Steven
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
210660, B01D 5334
Patent
active
056744625
ABSTRACT:
A method is provided for the removal of metalloid and non-metal hydrides from gas or liquid media. The improvement is provided by the use of a high-temperature carbonaceous char derived from a carbonaceous feedstock which has been exposed to nitrogen-containing compounds at temperatures above 700.degree. C. In the preferred embodiment of the method, the high-temperature carbonaceous char is prepared by carbonizing and oxidizing a bituminous coal at temperatures less than 700.degree. C followed by exposure to urea, ammonia, or nitrogen-containing compound as the temperature is raised to above 700.degree. C.
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Hayden Richard A.
Matviya Thomas M.
Bos Steven
Calgon Carbon Corporation
DiMauro Peter
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