Activated Carbon Injection (ACI) System

The Dustex® Activated Carbon Injection (ACI) System injects Powdered Activated Carbon (PAC) from a storage silo into flue gas ductwork, where it adsorbs contaminants including heavy metals such as mercury and lead, as well as hazardous air pollutants like dioxins and furans. The spent PAC with contaminants are then collected with fly ash in the plant’s particulate collection device.

The ACI is the most established and cost-effective method for heavy metal control. Dustex® ACI systems have been demonstrated to reduce emissions by more than 99%.

Dustex® ACI

Once injected, pollutants like heavy metals bind to the surface of the carbon. These loaded particles are then captured by downstream filtration systems, typically fabric filters, preventing their release into the atmosphere.
ANDRITZ’s ACI systems are designed for high efficiency, flexible dosing, and seamless integration with existing air pollution control setups, making them ideal for retrofits and upgrades in power plants, cement kilns, and waste-to-energy facilities.
Dustex® provides both standard and customized designs, optimized for these industries.

The key features of ACI include:

Guarantee value for mercury control (for more than 99%; acc. MATS regulation, BimSch17, etc.)
Designed and built to meet customized A/E specifications
Utility-grade, long-lasting components
Effective across a wide range of fuels and plant configurations
High availability with low maintenance needs
Standard designs for fast delivery and low cost
Fully automated, hands-free operation
Proven highest accuracy on the market
Compatible with brominated powdered activated carbon

DeNOx systems - Selective Catalytic Reduction (SCR)

Technology for power stations, Energy-from-Waste plants, and industrial plants

Combined/multi-stage flue gas cleaning systems

Our complete product portfolio allows us to comply with the most difficult requirements through the intelligent combination of our processes and technologies especially for Waste-to-Energy plants or other industrial applications.

ANDRITZ Wet limestone flue gas desulphurization (FGD), Neurath, Germany

Wet flue gas cleaning systems

ANDRITZ provides novel scrubber system (FGDplus) that maximizes SO2 and dust removal while keeping energy inputs to a minimum.

ANDRITZ Turbo-CDS Dry flue gas desulphurization (FGD) plant Timisoara, Romania

Dry flue gas treatment

ANDRITZ dry flue gas cleaning systems meet the requirements for complying with the world’s strictest emissions legislation, the desire for low consumption of additives, the need for minimal residues, and the installation simplicity of a compact design.

Service, retrofit and modernization

Clean Air Technologies – Clean environment for a better tomorrow

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For general questions related to ANDRITZ´s clean air technologies (new-build, upgrades & retrofits, inspections, services, spare parts, land-based or maritime equipment), please contact us.