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Mercury Emissions Control Technologies
Field Testing of Activated Carbon Injection Options for Mercury Control at TXU’s Big Brown Station

The Energy and Environmental Research Center will evaluate the long-term feasibility of using activated carbon injection with or without performance additives, to reduce mercury emissions from a Texas utility burning either Texas lignite or a blend of Texas lignite and subbituminous coals. Sorbents will be injected at the Big Brown Station after the electrostatic precipitator but ahead of the baghouse, a configuration known as TOXECON™. The benefit of this configuration is that it prevents the majority of the ash from being contaminated with activated carbon and allows the ash to be sold for use in concrete. Cost-share for the project will be provided by additional project partners including:  ADA-ES, Babcock & Wilcox, EPRI and a lignite utility consortium from North Dakota and Texas. At the completion of this two year project, EERC will have demonstrated a targeted sustainable mercury removal rate of >55% at a facility burning a Texas Lignite in order to meet DOE’s objective for mercury control for lignite fuels.

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