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PNCR Polymer-Based Dry Denitrification Technology

Working Principle

PNCR technology (dry injection) involves uniformly spraying a solid denitrification reductant into the appropriate temperature window (600–900°C) of furnace flue gas without catalysts. The reductant rapidly decomposes and reacts with NOx to form N₂ and H₂O, with minimal interaction with oxygen. This complies with China’s HJ 563-2010 Technical Specification for Flue Gas Denitrification Engineering of Thermal Power Plants — Selective Non-Catalytic Reduction.

Mechanism:

Between 600–900°C, polymer-based dry powder reductant is injected into the furnace. Activated by high temperatures, it gasifies and reacts with NOx to generate N₂, H₂O, or minimal CO₂, achieving NOx removal and compliance with emission standards.

PNCR Technical Advantages

Low Investment Cost
One-time CAPEX investment, 70–80% lower than SNCR. Avoids pressure loss and other drawbacks of alternative denitrification technologies.
Compact & Rapid Deployment
Minimal footprint and short installation time.
High Efficiency & No Reactor Needed
Entire reduction process occurs within the boiler. Achieves 80–90% NOx removal without additional reactors.
Automation-Friendly Process
Simplified workflow enables seamless automation.
Safe Solid Reductant Storage
Granular reductant ensures easy storage and high safety.
Zero Operational Disruption
No boiler modifications or operational adjustments required.

Product Features

Bolaida Polymer Dry Reductant Conveying SystemEngineered for PNCR technology, this next-generation system enables long-distance, high-lift, precision-controlled material delivery.

Vacuum Suction Conveying:Fully enclosed transport ensures weatherproof, moisture-resistant operation.
Smart Dosing:Auto-adjusts feed rate based on real-time NOx concentration via PLC.
Eco-Efficiency:Minimizes reductant consumption while ensuring compliance.

Applications

PLC-controlled feeding frequency enables real-time precision adjustments based on actual NOx levels, delivering substantial material savings. Suitable for:

Coal/biomass boilers
Waste incinerators
Glass kilns
Ceramic thermal wind furnaces/roller kilns
Forging heating furnaces
Metallurgical smelting furnaces

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