Dry Scrubbing and Dry Sorbent Injection Systems
for Acid Gas and Hg Removal

SPE-AMEREX offers both wet and dry scrubber solutions to acid gas removal problems. The dry systems are conservatively designed systems that combine spray dryers and fabric filter to remove HCl, Hg, and SO₂ without the need to dispose of wastewater associated with wet scrubber systems. These dry systems completely eliminate the initial capital, operation, and maintenance costs of the wastewater treatment equipment. These systems are custom designed to meet the specific needs of each project. We carefully consider initial capital costs as well as the reagent costs of the various alternatives to arrive at the best solution to your particular problem. Complexity of operation and maintenance costs are also carefully considered.

Carbon Injection to Remove Mercury

Required mercury reduction of 90% by Electrical Generating Units is anticipated. With over 20 years experience in Municipal Solid Waste (MSW) and European mercury removal, SPE-AMEREX has a large database of experience to draw upon.

The activated carbon injection system consists of activated carbon truck unloading and silo storage, and an activiated carbon distribution system which includes rotary valves, volumetric feeders, blowers, distribution piping, injection assemblies, and instrumentation and controls. SPE-AMEREX's experience with carbon injection and close relationship with carbon suppliers and their data will allow us to provide the appropriate mercury reduction system.

Hydrated Lime Injection to Remove SO₂

Power generation units that fire high sulfur fuel may have conversion of SO₂ to SO₃ (natural in-furnace conversion) which may lead to acid attack on downstream equipment such as ductwork, air heaters, ID fans, etc. Additionally, Selective Catalytic Reduction systems can generate increased levels of SO₃, leading to a visable "blue plume" as well as downstream acid attack. With extensive dry injection knowledge and CFD modeling ability, SPE-AMEREX can provide a lime injection system downstream of your SCR before wet scrubbers or particulate control systems. Our proprietary nozzle design will provide advantages in reagent coverage.

The hydrated lime injection system consists of truck unloading and storage silo, and a distribution system which includes rotary valves, volumetric feeders, blowers, distribution piping, injection assemblies, and instrumentation and controls.