Inherently concrete-compatible carbon sorbents for mercury removal from flue gas
AssigneeCalgon Carbon Corporation
InventorsNicholas R. POLLACK, Richard A. HAYDEN
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Abstract
A sorbent composition and process of making sorbent designed for the removal of contaminants from flue gas and subsequent use in cement or concrete formulations are discussed. The sorbent composition comprises a coal feed stock prepared to have a total BET surface area of at least 350 m2/g, and wherein the sorbent has a cumulative surface area less than 10 m2/g for pore diameters between 0.01 and 0.1 microns, a cumulative pore volume less than 0.055 cc/g for pore diameters between 0.01 and 0.1 microns, or both.
Claims9
A process for making a concrete-compatible sorbent, comprising the step of preparing a feedstock to have a total BET surface area of at least 350 m2/g and to have a cumulative surface area less than 10 m2/g for pore diameters between 0.01 and 0.1 microns, a cumulative pore volume less than 0.055 cc/g for pore diameters between 0.01 and 0.1 microns, or both.
Dependencies are inferred from the claim text.