Environmental solutions
Air pollution control
Service, retrofit & modernization

Air Pollution Control – Service, retrofit and modernization

With over 29,000 experts around the world, ANDRITZ provides the skills and experience to address any challenge the various industries present. From inspections and condition assessments, spare parts, to mechanical, electrical and process retrofit or modernization, ANDRITZ Air Pollution Control delivers the solutions you need for your plant.

ANDRITZ is the best qualified partner to service and maintain its own equipment supplied, but the team’s expertise extends a good deal further. It also includes decades of hands-on experience in inspecting, maintaining and upgrading components and systems from other major equipment and technology suppliers.

Today, ANDRITZ is your supplier of choice for service work, spare parts, upgrades and lifetime extension of your existing air pollution control equipment. No other company has the tools, knowledge, or experience to deliver the full range of services and solutions wherever the need.

ANDRITZ has a complete and well-proven services portfolio:

Field Services:

Inspections, condition assessments, testing, outages,
Erection and commissioning, start-up, training, etc.

Parts / Improved parts:

Replacement with new components (OEM and oOEM)

Upgrades / Retrofits:

Mechanical and electrical modernization (partial/full) of the air pollution control equipment to meet new emission level requirements and/or extend the equipment lifetime

Long-term service agreements:

Partial and/or full responsibility (inspections, outages, O&M, remote monitoring, etc.), with performance guarantees

Digital:

Remote monitoring and control/asset optimization (via Metris)

ESP Electrostatic Precipitator 3D white-computer generated image

Dry Electrostatic Precipitator (ESP)

The ESP uses electrical forces to remove Particulate Matter (PM) from the flue gases. A high voltage source, generating a corona current, charges the PM which migrate to the collecting plate. PM are removed from the plate by a knocking action.

EKP Unit 2 - ANDRITZ Wet Electrostatic precipitator (WEST)

Wet Electrostatic Precipitator (WESP)

As for the dry ESP, the wet ESP uses electrical forces to remove Particulate Matter (PM) from the flue gases. A high voltage source, generating a corona current, charges the PM which migrate to the collecting plate. PM are removed from the plate by flushing water.

Fabric Filters (FF)

The Fabric Filter (or baghouses or bag filters) uses a filter media to separate Particulate Matter (PM) from the flue gases. The Particulate Matter are deposited at the surface of the fabric filter which may be made of different materials depending on the flue gas physical and chemical composition. The dust is removed periodically when cleaning the bags.

Hybrid Filters

Hybrid Filter is a combination of ESP and FF with several configurations (in serie and in the same casing (integrated) or in separated casings in serie or in parallel (separated)).

Dry sorbent injection (DSI)

In the DSI system, calcium or sodium-based alkaline sorbents are injected into the flue gas to remove acid gases (SO2,SO3/H2SO4, HCl), volatile organic compounds (VOCs), and metals (Hg, …). Injection of the sorbent is simple and takes place between the air heater and the PM control equipment.

Novel Integrated Desulphurization (NID) - EKP Unit 3

Novel Integrated Desulfurization (NID)

The semi-dry desulfurization combines the injection of a suspension/solution of alkaline reagent into the sulphur-rich flue-gases before removing the resulting product by filtration (Fabric Filer or Electrostatic Precipitator).

Spray Dryer Absorber (SDA)

The semi-dry desulphurization combines the injection of a suspension/solution of alkaline reagent into the sulphur-rich flue-gases before removing the resulting product by a Fabric Filter.

Selective Non-Catalytic Reduction (SNCR)

In the SNCR system, a reducing agent, typically ammonia or urea, is used to convert the NOx emissions (without catalysts) into harmless nitrogen (N2) and water vapor (H2O).

Chemical absorption / desorption process

The chemical absorption process has been used since the 1930s for the capture of CO₂ from ammonia plants for food applications. Today it remains the most mature process for capturing CO₂ in large quantities.

CONTACT US

Your first choice for Air Pollution Control equipment and services

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

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BROCHURES and LEAFLETS

ANDRITZ Air Pollution Control brochure PDF : 9.2 MB
HIGH FREQUENCY POWER SUPPLIES - Electrostatic Precipitators PDF : 398 KB
WASTE TO ENERGY APPLICATIONS PDF : 471 KB
SERVICE CENTER AMERICAS - SERVICES & REPAIRS PDF : 308 KB
Mercury control brochure PDF : 1.3 MB
The missing link in mercury control?

Interview

PDF : 142 KB
TechNews: A hollistic approach. Mercury control PDF : 826 KB

LATEST NEWS:

ANDRITZ acquired parts of GE Steam Power’s AQCS business

Technologies - Air Pollution Control

ANDRITZ has over 130 years of experience in designing and building air pollution control equipment. From single to multi-pollutants control equipment, adapted for heat recovery when needed, ANDRITZ solutions range from dedusting, desulphurization, denitrification, mercury control technologies to combined/multi-stage and multi-pollutants systems.

Industries - Air Pollution Control technologies

ANDRITZ has an extensive experience across all major industries, Pulp & Paper, Iron & Steel, Metals, Waste to Energy (incl. RDF and sludge), Mining, Biomass and Utility, ANDRITZ provides you with a comprehensive portfolio of air pollution control solutions focusing on reduced emissions, improved performance and efficiency to meet your operation strategies.