SCR Catalyst Retrofitting

SCR Catalyst Retrofitting

Modular Complete MWM Solution

Comply with Emission Limits for Existing and New CHP Plants While Ensuring Plant Efficiency and Availability

Due to the introduction of new evidence, documentation, and reporting obligations under the 44^th Federal Immission Control Ordinance (44^th BImSchV) on June 20, 2019 and stricter emission limits, existing and new plants with a rated thermal input of 1 to 50 MW in Germany need to be retrofitted with SCR catalysts. To ensure compliance with these requirements, MWM offers a retrofit kit in the form of a compact turn-key solution with SCR catalysts. SCR technology enables the reliable reduction of NOx emissions in a sustainable and long-term manner.

Requirements of the 44^th BImSchV

The SCR catalyst components

(can be implemented in the form of a containerized solution or in a building):

• SCR catalyst housing
• SCR catalyst and oxidation catalyst honeycomb
• Dosing unit
• Control
• Injection section
• Compressed air unit
• Urea tank

A urea-water solution is injected into the exhaust gas after the gas engine and before the catalyst. The thermolysis and hydrolysis in the exhaust gas produces ammonia (NH₃) and carbon dioxide (CO₂). In the catalyst, the ammonia causes a reduction of NO_x, resulting in nitrogen and water.

Apart from the catalyst, we can offer you the following products and services:

• Urea tank
• Urea solution MWM Premium U 32.5
• Service and maintenance
• Financing from 0% p.a.

Easy retrofitting by MWM Service:

The ordinance applies to newly installed and existing combined heat and power (CHP) plants and cogeneration plants in Germany that are driven by gas engines. For the retrofitting of existing plants, MWM offers a compact turn-key solution with SCR catalyst, optionally also with urea tank and urea solution. As the retrofitting of existing plants takes very little time, the downtime is very short. Moreover, MWM Service evaluates all the steps that need to be taken in advance in order to ensure a smooth and speedy transition. After the existing peripherals have been disconnected, the new SCR catalyst can be mounted. Additionally, the urea tank is set up, the control system is installed, and the SCR system is linked to and integrated in the existing engine control. Optional remote system access ensures quick support and high system availability.

Benefits of MWM SCR catalyst retrofitting at a glance:

• Modular complete solution in compact design
• Full compliance with the statutory requirements of the 44^th BImSchV
• Even more efficient plant operation with reduced emissions
• Service and maintenance by qualified personnel
• Comprehensive EPC (engineering, procurement, and construction) retrofit solution including urea tank and urea solution
• State-of-the-art urea injection technology, controlled by the actual NO_x values measured
• Remote access to the system for quick support and high system availability
• Project financing with 0 percent interest available on request

Flyer SCR Catalyst Retrofitting (in German)

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Product Flyer MWM Premium U 32.5 (in German)

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