Hot-Side ESP Environments
Near-Instantaneous Reaction Time: Ultra fast reactions between the gas borne mercury and the brominated substrate allow for high levels of mercury removal in the short treatment times available in an ESP environment.
Expanded Operating Temperature Range: H-PAC sorbents exhibit exceptional collection rates at all elevated ESP inlet temperatures. Mercury capture rates in excess of 80% have been demonstrated while operating in temperature environments above 650°F.
Bromine Stability: H-PAC is manufactured using a patented bromination process that assures a robust, chemical, bond between the Bromine, the carbon substrate, and the adsorbed mercury-bromine compound. Because of the integrity of this bond, the collected mercury remains with the carbon through the collection process, even at elevated temperatures, and the bromine itself is resistant to leaching or release.
ESP Collection Performance: H-PAC can be used to effectively control mercury emissions with as little as 1 – 5 pounds of sorbent injected per million ACF of flue gas flow. From an ESP perspective this represents 0.5% to 1.5% of the total ash load. Multiple field trials and full scale site demonstration confirm no negative impact whatsoever on ESP collection efficiency, sparking, power consumption or other operating parameters.
