LAB designs and delivers deNOx systems based on Selective Catalytic Reduction (SCR) to reduce nitrogen oxides (NO and NO₂) in flue gases to ultra-low levels. Our own custom-engineered SCR solutions ensure compliance with the strictest environmental regulations, while minimizing reagent consumption and ammonia slip and respecting highest operational reliability.
What is SCR?
SCR (Selective Catalytic Reduction) is a part of flue gas cleaning process where a reducing agent, such as mainly ammonia water or urea, is injected into the flue gas. The mixture passes through a catalyst layer bed where NOx is converted on the catalyst surface into nitrogen (N₂) and water vapor, both harmless to the environment.
Catalytic module
- Up to 95% NOx reduction efficiency
- Works at medium to high temperatures (180–300°C)
- Using highly efficient catalyst in cooperation with well-known produce
- Best solution for installations requiring strict NOx and ammonia emission limits
Goteborg, Sweden
Key Features of LAB’s DeNOx SCR Systems
- Tailor- LAB made design adapted to your flue gas characteristics (temperature, dust and other pollutants content, NOx reduction, flow rate, etc.)
- Flexible reagent choice: ammonia, ammonia water, or urea
- Modular catalyst configuration for catalyst management and optimized lifespan
- Optionally integrated cleaning systems to prevent dust or salt deposit and to limit flue gas pressure drop
- Upstream dedusting system (like ESP or bag house filter)
- Upstream or downstream integration of acid gas removal (dry or wet system), and heat recovery devices
- Low temperature SCR: Catalyst regeneration with flue gas recirculation upstream FGT to avoid pollutant’s peaks at stack
LAB Ammonia Water Distribution Skid
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Barcelona, Spain
Benefits at a Glance
- Up to 95% NOx reduction (to low range of BATAEL’s emissions)
- Additionally destroying of dioxins and furans at catalyst
- Very low ammonia slip
- Compact design, even for retrofit projects
- Optimized reagent consumption by CFD modelled reagent injection and distribution
- High catalyst lifespan
- Full integration with LAB’s flue gas treatment systems
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Why to Choose LAB?
With decades of experience in turnkey flue gas cleaning systems, LAB combines technical know-how, in-house engineering, and field-proven reliability to deliver tailor-made deNOx SCR solutions to lower NOx emissions in energy producing plants or engines.
- Integrated with our systems: SecoLAB ®, BicarLAB ®, VapoLAB ® and wet scrubbers
- Installed on operating plants across Europe.