SCR Honeycomb Denitrification Catalyst
Industry-leading honeycomb SCR catalysts engineered for superior NOx removal across power and non-power sectors. Annual production capacity of 10,000 m³ backed by Sino-Korean technical expertise.
World-Class Catalyst Manufacturing
Shandong Do Sender Chemicals Co.,Ltd. is a specialized environmental technology company and Sino-Korean joint venture, dedicated to the research, development and production of honeycomb SCR denitrification catalysts.
How SCR Technology Works
Selective Catalytic Reduction (SCR) converts nitrogen oxides (NOx) into harmless nitrogen (N₂) and water (H₂O) using ammonia as the reducing agent in the presence of our high-performance catalyst.
Flue Gas Inlet
NOx-laden flue gas enters the SCR reactor at optimal temperature
NH₃ Injection
Ammonia is precisely injected and mixed with the flue gas
Catalytic Reaction
NOx + NH₃ → N₂ + H₂O over the honeycomb catalyst surface
Clean Emission
Purified gas exits the stack — no secondary pollution
Catalyst Composition
Our honeycomb SCR catalysts are precisely engineered from high-purity materials to deliver exceptional performance and durability.
Manufacturing Process
Our 12-step production process ensures consistent quality and performance across every catalyst unit.
Raw Material Intake
High-purity raw materials received and inspected
Weighing & Batching
Precision weighing and formulation batching
Material Mixing
Homogeneous mixing in high-shear mixers
Paste Aging
Controlled aging for optimal plasticity
Pre-Extrusion Filtration
Impurity removal through fine filtration
Paste Aging II
Secondary aging for uniformity
Extrusion Molding
Precision honeycomb structure formation
Primary Drying
Controlled moisture removal — stage one
Secondary Drying
Precision drying — stage two
Calcination
High-temperature thermal treatment and activation
Quality Inspection
Comprehensive product testing and verification
Packaging & Shipping
Secure packing and global logistics
Product Specifications
Our comprehensive catalyst portfolio covers a wide range of cell densities to meet diverse industrial requirements. All dimensions comply with GB 31587-2015 standards.
| Cell Configuration | Pitch (mm) |
Wall Thickness (mm) |
Opening Width (mm) |
Geometric Surface Area (m²/m³) |
|---|---|---|---|---|
| 15 × 15 | 9.8 | 1.4 | 8.43 | 337 |
| 16 × 16 | 9.2 | 1.2 | 8.04 | 366 |
| 18 × 18 | 8.2 | 1.1 | 7.10 | 409 |
| 20 × 20 | 7.4 | 1.0 | 6.40 | 455 |
| 21 × 21 | 7.0 | 1.0 | 6.06 | 475 |
| 22 × 22 | 6.7 | 0.9 | 5.83 | 502 |
| 25 × 25 | 5.9 | 0.75 | 5.16 | 570 |
| 30 × 30 | 4.9 | 0.65 | 4.29 | 686 |
| 35 × 35 | 4.2 | 0.6 | 3.63 | 791 |
| 38 × 38 | 3.9 | 0.6 | 3.30 | 845 |
| 40 × 40 | 3.7 | 0.55 | 3.16 | 899 |
| 50 × 50 | 3.0 | 0.4 | 2.57 | 1,142 |
* Above dimensions are statistical averages. Actual product dimensions may vary slightly. All products comply with GB 31587-2015 Honeycomb-type Denitrification Catalyst standards for appearance, geometric performance and physical-chemical properties.
Applications by Temperature Range
Since reaction temperature significantly affects catalyst activity, we have developed specialized products for different flue gas temperature windows across various industries.
Low Temperature
- Container Glass (post-WHB)
- Coking (post-denitrification)
- Waste Incineration
- Ceramic Kilns
- Chemical Industry (caprolactam, nitric acid, pharmaceutical)
- Power Plant (tail-end, post-FGD)
- Cement (low-temperature, low-dust)
Medium-Low Temperature
- Container Glass (pre-WHB)
- Coking (pre-denitrification)
- Sintering Machine (low-temp)
Medium Temperature
- Power Plants & Heating Boilers
- Flat Glass Manufacturing
- Sintering Machine (medium-temp)
- Cement (high-dust & medium-dust layout)
High Temperature
- Gas Turbine Units
- Distributed Energy Systems
Advanced Catalyst Testing
Our in-house testing platform provides comprehensive catalyst performance evaluation under real-world operating conditions.
Activity Testing (K-Value)
Precise measurement of catalytic activity — the catalyst's ability to facilitate the reaction between the reducing agent and nitrogen oxides. Testing is performed under controlled conditions:
- Temperature
- NO Concentration
- O₂ Concentration
- SO₂ / SO₃ Concentration
- NH₃ Concentration
- Catalyst Volume (v)
- Ammonia-Nitrogen Molar Ratio (α)
- Temperature
- NO Concentration
- O₂ Concentration
- SO₂ / SO₃ Concentration
- NH₃ Concentration
Testing Capabilities
- Catalyst Activity Detection
- Mechanical Strength Testing (compressive strength, abrasion resistance)
- Chemical Composition Analysis
- Physical Property Testing (specific surface area, pore volume, pore size)
- Catalyst Life Management Curve
- Catalyst Addition & Replacement Planning
Comprehensive Services
We deliver more than products — we provide end-to-end solutions that maximize your SCR system performance.
Installation & Commissioning
Expert on-site catalyst installation, operational guidance, and system commissioning to ensure optimal performance from day one.
Lifecycle Management
Comprehensive catalyst life management including performance monitoring, activity tracking, regeneration assessment and replacement scheduling.
Reactor Design & Optimization
Custom denitrification reactor design, flow field optimization, and CFD modeling to achieve uniform gas distribution and maximum efficiency.
Troubleshooting & Analysis
In-depth operational issue diagnosis, catalyst deactivation analysis, poisoning assessment, and performance recovery recommendations.
Process Consulting
SCR operational consulting, flue gas condition testing, catalyst selection guidance, and customized solution development for your specific application.
Quality Assurance
Rigorous testing protocols including full-scale engineering simulation, mechanical strength verification and chemical composition analysis on our in-house platform.
Why Choose Do Sender Chemicals Catalysts
Customized Solutions
Tailored catalyst formulations and reactor designs for each specific project and operating environment.
High Activity & Poison Resistance
High-activity honeycomb catalysts with strong anti-poisoning capability and low SO₂ oxidation rates.
Optimal Gas Distribution
Superior flue gas mixing — uniform composition, temperature and velocity profiles across the catalyst cross-section.
Full-Scale Simulation
Engineering simulation and pilot testing on our full-scale platform before full deployment.
Expert Technical Support
Dedicated technical service team to resolve complex operational issues throughout the product lifecycle.
Competitive Pricing
High-quality catalysts at competitive prices through efficient manufacturing and Sino-Korean supply chain integration.
Ready to Optimize Your NOx Emissions Control?
Contact our technical team to discuss your SCR catalyst requirements. We provide customized solutions backed by comprehensive testing and engineering expertise.
Contact Our Experts
For more information about our products and solutions, please contact our experts. We look forward to hearing from you.