Self-Ignition Resistant Thermally-Activated Carbon

摘要

Thermally-activated cellulosic-based carbon is rendered more thermally stable by exposure to a halogen and/or a halogen-containing compound. Such treated cellulosic-based carbon is suitable for use in mitigating the content of hazardous substances in flue gases, especially flue gases having a temperature within the range of from about 100° C. to about 420° C.

主权项

1. A thermally-activated cellulosic-based carbon that has been exposed to a halogen and/or a halogen-containing compound, has an ash content of 10 to 15 wt % and that has at least one of the following:
(i) a temperature of initial energy release that is greater than the temperature of initial energy release for the same thermally-activated cellulosic-based carbon without the halogen and/or halogen-containing compound exposure; (ii) a self-sustaining ignition temperature greater than the self-sustaining ignition temperature for the same thermally-activated cellulosic-based carbon without the halogen and/or halogen-containing compound exposure; and (iii) an early stage energy release value that is less than the early stage energy release value for the same thermally-activated cellulosic-based carbon without the halogen and/or halogen-containing compound exposure.