High Mercury Capture Without Corrosive Halides

Amended Silicates™ Achieve High Mercury Capture Without Corrosive Halides

Non corrosive mercury capture & mitigation solution for coal fired power plants

AIR-HEATER CORROSION TYPICAL OF HALIDE USE

Coal fired power plants continue to face challenges to remain competitive with the increase of natural gas and renewable generation, as well as growing costs to meet stringent emission standards. Existing technologies for mercury mitigation, such as halide treatments (e.g. CaBr₂), can be corrosive to downstream plant equipment, contaminate wastewater discharge and reduce plant availability.

Activated carbon injection can render ash unsalable, create opacity issues and significantly increase plant O&M costs. EES Amended Silicates™ offer a cost-effective alternative designed to augment mercury oxidation, safely capture mercury, and improve air pollution control equipment performance without corrosion and damage to balance of plant equipment.

What Are EES Amended Silicates™

EES Amended Silicates™ are patented formulations of advanced compounds combining a non-carbon substrate with a highly reactive surface coating. These reactive coatings are designed to capture and stabilize pollutants and provide other balance of plant improvements: reduces fly ash resistivity (improves ESP performance), minimizes metal leaching from fly ash, and eliminates the need for corrosive halides. EES Amended Silicates™ have been engineered for various applications including:

AS-DryScrub – optimized to capture mercury from dry scrubbers and circulating dry scrubbers
AS-HgOx – engineered for superior catalytic oxidation of mercury in flue gases
AS-ULTRA – formulated for extremely high Hg capture in unscrubbed units or units requiring capture upstream of a wet FGD
AS-DIOX – developed for the catalytic destruction of dioxins, furans, and other toxic organic compounds associated with waste incineration and other industrial processes

Reduce corrosion in your FGD, Improves ESP performance, Reduce compliance cost

AS-HgOx Reduces Compliance Costs

For units equipped with wet FGD and halide fuel treatment, AS-HgOx is an ideal alternative to eliminate associated corrosion and reduce O&M costs. Unlike halide treatments, EES’ AS-HgOx is injected downstream of the boiler in cooler flue gas zones of 300-600°F. Key benefits include:

Improves fly ash quality and saleability (no additional carbons or halides)
No equipment corrosion or waste water discharge issues caused by halide additions
Reduces operational costs for better ROI than halides and activated carbon injection

Enter your keyword