scr scrubbing system upgrade for industrial coal boiler – Maximize Emission Control & Efficiency
Product Overview
Our scr scrubbing system upgrade for industrial coal boiler is engineered to retrofit existing coal‑fired units with state‑of‑the‑art flue‑gas cleaning technology. The modular kit replaces legacy wet‑scrubbers, delivering superior SO₂ and NOx removal while extending boiler life‑cycle. Designed for plants from 50 MW to 500 MW, the system integrates seamlessly with current control panels and can be commissioned within a single shutdown window.
By upgrading, operators achieve compliance with the latest EU‑ETS, US EPA, and Chinese emission standards without the capital expense of a full boiler replacement. The solution is supplied as a complete package: pre‑fabricated absorber towers, high‑efficiency catalyst modules, automated reagent dosing, and a PLC‑based monitoring interface.
How It Works
The upgrade employs a two‑stage scrubbing approach. First, a limestone‑based wet absorber neutralizes sulfur oxides, producing a stable calcium sulfite slurry. The slurry is then pumped to a high‑temperature catalyst chamber where selective catalytic reduction (SCR) converts residual NOx into nitrogen and water using a urea‑based reagent. Real‑time sensors adjust reagent flow to match load variations, ensuring optimal removal rates across the full duty cycle.
The system’s closed‑loop design recirculates treated water, reducing fresh water consumption by up to 40 % compared with conventional scrubbers. Heat exchangers recover waste heat from the flue gas, feeding it back to the boiler feedwater system and improving overall plant thermal efficiency by 1‑2 percentage points.
Technical Specifications
| Parameter | Typical Range | Unit |
|---|---|---|
| Design Capacity (Steam) | 50 – 500 | MW |
| SO₂ Removal Efficiency | 95 – 99 | % |
| NOx Reduction (SCR) | 90 – 95 | % |
| Reagent Consumption (Urea) | 5 – 8 | kg/MWh |
| Water Re‑use Rate | 60 – 80 | % |
| Operating Temperature (Absorber) | 120 – 150 | °C |
| Control Interface | PLC with HMI | – |
*Typical specifications are customizable per order to match specific boiler designs and local regulatory limits.
Competitive Advantages
- Rapid Retrofit: Prefabricated modules reduce onsite installation time by 30‑40 % compared with conventional builds.
- Lower Operating Cost: Optimized reagent dosing and heat recovery cut fuel consumption and chemical expenses.
- Scalable Design: Units can be linked in series or parallel to accommodate future capacity expansions without major re‑engineering.
- Regulatory Ready: Certified to meet EU‑ETS, US EPA 40 CFR Part 60, and China GB 18597 standards out of the box.
- Robust Support: Global after‑sales network provides 24/7 technical assistance, spare‑parts logistics, and on‑site commissioning services.
FAQ
What is the minimum order quantity (MOQ) for the upgrade?
The standard MOQ is one full‑scale boiler package, typically covering a 100 MW unit. Smaller pilot kits (10 MW equivalent) are available for demonstration or phased implementation projects.
Can the system be customized for existing control architectures?
Yes. Our engineering team works with plant OEMs to integrate the scr scrubbing system upgrade for industrial coal boiler into DCS, PLC, or SCADA environments, offering both analog and digital I/O options.
What is the typical lead time from order to delivery?
Standard projects ship within 15‑45 days after final engineering sign‑off, depending on component availability and required certifications.
What warranty and after‑sales service are provided?
All units carry a 24‑month full‑parts warranty and a 36‑month extended warranty on the catalyst. Our global service team offers routine maintenance contracts and emergency response within 48 hours of a service call.