Mercury emissions from coal-fired power plants are the largest source of atmospheric Hg in the US. During combustion, mercury in the coal is volatilized and converted to elemental mercury vapor at about 1 ppbv. As the flue gas cools, other Hg species are formed. Injection of powdered activated carbon into the flue gas is one approach for controlling Hg emissions. The performance of an activated carbon for Hg removal is related to its chemical and physical characteristics. This guide is intended to evaluate the performance of an activated carbon for removal of elemental Hg in a simulated flue gas. The capacity value determined in this guide can be used in selection of an appropriate activated carbon for Hg removal from flue gas
The title and scope are in draft form and are under development within this ASTM Committee.
Citing ASTM Standards
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