Product Specification

Advanced Cordierite SCR Catalyst Solutions for Industrial and Mobile DeNOx

    The Cordierite SCR Catalyst is a high-performance ceramic monolithic solution designed for Selective Catalytic Reduction (SCR) technology. It serves as a critical substrate for reducing harmful nitrogen oxides (NOx) from combustion exhaust, converting them into benign nitrogen (N₂) and water vapor (H₂O).

    The chemical equations for the selective catalytic reaction are as follows:

• 4NO + 4NH₃ + O₂ → 4N₂ + 6H₂O
• 6NO₂ + 8NH₃ → 7N₂ + 12H₂O
• NO + NO₂ + 2NH₃ → 2N₂ + 3H₂O

GRACE general specifications

Introduction & Usage

    Cordierite is the industry-standard material for catalyst supports due to its exceptional thermal shock resistance and mechanical durability. The GRACE cordierite catalyst is engineered for high-precision NOx abatement across two primary configurations:

• Round Geometry: Primarily utilized for mobile applications, including heavy-duty diesel trucks, off-road construction machinery, and compact generator sets where vibration resistance is paramount.
• Square/Rectangular Modules: Ideal for large-scale fixed installations such as coal-fired power plants, industrial kilns, and gas turbine waste heat recovery systems.

Technical Advantages

• Superior Thermal Integrity: The material's low thermal expansion coefficient prevents cracking during rapid temperature fluctuations.
• High Active Surface Area: Available in various cell densities (cpsi) to maximize contact between the exhaust gas and the GRACE active coating (typically TiO₂/V₂O₅/WO₃ or zeolites).
• Optimized Space Velocity: Designed to handle high gas volumes with a superior load capacity, ensuring efficient NOx removal even under heavy industrial loads.
• Versatile Temperature Tolerance: Capable of sustained operation at high temperatures without structural degradation or melting of the active porous structure.

Operation & Maintenance

• Exhaust Inflow: Flue gas containing NOx enters the honeycomb channels.
• Ammonia Injection: A reducing agent (NH₃) is introduced upstream of the GRACE catalyst bed.
• Catalytic Conversion: The reaction occurs within the porous wall structures, achieving high denitrification rates.
• Monitoring: Regularly check the pressure drop across the bed, as excessive differential pressure can impact engine or boiler performance.

After-Sales & FAQ

Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons Or wooden cases and foam. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages
before you pay the balance.

Q3. What is your terms of delivery?
A: EXW, FOB, CRF, CIF, DDU.

Q4. How about your delivery time?
A: Generally, it will take 30 to 60 days after receiving your advance payment. The specific delivery time depends
on the items and the quantity of your order.

Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, Depending on the product specifications, some samples may be provided free of charge, but customers are responsible for shipping costs.

Q7. What's the lead-time for samples?

A: Within 3-7 days for bulk order, 10-15 days for OEM designs and shapes.

Q8. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.

Q9: Are you a manufacturer or trading company ?

A: We are a manufacturer, specialize in catalysts coating, design & research, producing catalytic converter, DOC, DPF ,SCR and related auto parts.

Q10.What certifications do you have?

A: ISO 9001, IATF 16949, ISO 14001, ISO 45001, ISO 50001, RoHS, REACH, CRAA.

Q11: What causes catalyst deactivation?

A: Continuous over-temperature operation or "poisoning" from sulfur or heavy metals in the fuel can lead to sintering and loss of active sites.

Q12: Can cordierite catalysts be recycled?

A: Yes, the precious or transition metals in the GRACE coating can often be recovered, and the ceramic base can be processed responsibly.

Service Support: We provide on-site activity testing, backpressure analysis, and catalyst replacement planning to ensure your facility remains 100% compliant with regional emission laws.

Core Keywords: Cordierite SCR Catalyst, Honeycomb Ceramic, NOx Reduction, Selective Catalytic Reduction, GRACE Catalyst, Industrial DeNOx, Thermal Shock Resistance.