Abstract: The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.

Abstract: The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.

Abstract: The present disclosure is directed to a process that allows dry sorbents to remove a target constituent, such as carbon dioxide (CO2), from a gas stream. A staged fluidized bed separator enables gas and sorbent to move in opposite directions. The sorbent is loaded with target constituent in the separator. It is then transferred to a regenerator where the target constituent is stripped. The temperature of the separator and regenerator are controlled. After it is removed from the regenerator, the sorbent is then transferred back to the separator.

Abstract: A waste gas is contacted with a mercury removal agent to remove mercury and a flue gas conditioning agent to alter a resistivity and/or cohesivity of particulates. The flue gas conditioning agent can be substantially free of SO3 and/or comprise more than about 25 wt. % SO3, and/or the mercury removal agent can be substantially unaffected by the flue gas conditioning agent. An amount of mercury removed from the waste gas in the presence of the flue gas conditioning agent can be the same or more than that removed from the waste gas in the absence of the flue gas conditioning agent. An amount of the acid gas removed, by an acid gas removal agent, from the waste gas in the presence of the flue gas conditioning agent can be the same or more than that removed from the waste gas in the absence of the flue gas conditioning agent.

Abstract: The objective of this invention is to develop a method to reclaim functional sites on a CO2 sorbent that have reacted with an acid gas (other than CO2) to form heat stable salts (HSS). HSS are a significant concern for dry sorbent based CO2 capture because over time the buildup of HSS will reduce the overall functionality of the CO2 sorbent. A chemical treatment can remove the non-CO2 acid gas and reclaim functional sites that can then be used for further CO2 adsorption.

Abstract: A flue gas additive is provided that includes both a nitrogenous component to reduce gas phase nitrogen oxides and a halogen-containing component to oxidize gas phase elemental mercury.

Abstract: The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.

Abstract: The present disclosure is directed to the introduction of an additive to a contaminated gas stream. An additive introduction system uses a compressor and carbon dioxide separator to provide a treated carrier gas for introduction of an alkaline additive to a contaminated gas stream.

Abstract: The present disclosure is directed to a dense-phase additive transportation system for additive injection into a contaminated gas stream.

Abstract: The present disclosure is directed to the application of additives to a feed material at a location remote from an industrial facility using the feed material.

Abstract: The disclosure provides an improved means of controlling mercury emissions from coal-fired boiler applications. Specifically, the disclosure comprises a static mixing device placed in the flue gas stream. The static mixing device can enhance dispersion of injected sorbents in the flue gas, resulting in improved mercury capture at a lower sorbent injection rate.

Abstract: The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.

Abstract: A flue gas additive is provided that includes both a nitrogenous component to reduce gas phase nitrogen oxides and a halogen-containing component to oxidize gas phase elemental mercury.

Abstract: The present invention is directed to additives for coal-fired furnaces, particularly furnaces using a layer of slag to capture coal particles for combustion. The additive(s) include iron, mineralizer(s), handling aid(s), flow aid(s), and/or abrasive material(s). The iron and mineralizers can lower the melting temperature of ash in low-iron, high alkali coals, leading to improved furnace performance.

Abstract: The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.

Abstract: The present disclose is directed to a method for controlling iodine levels in wet scrubbers, and, in particular, recirculating wet scrubbers by removing the iodine from the scrubbing solution, such as by using ion exchange, absorption, adsorption, precipitation, filtration, solvent extraction, ion pair extraction, and an aqueous two-phase extraction.

Abstract: A flue gas additive is provided that includes both a nitrogenous component to reduce gas phase nitrogen oxides and a halogen-containing component to oxidize gas phase elemental mercury.

Abstract: The present disclosure is directed to the introduction of an additive to a contaminated gas stream. An additive introduction system uses a compressor and carbon dioxide separator to provide a treated carrier gas for introduction of an alkaline additive to a contaminated gas stream.

Abstract: The present disclosure is directed to a high temperature method to adsorb carbon dioxide onto an ion-exchange resin and/or regenerate the carbon dioxide-loaded ion-exchange resins.

Abstract: The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.