Honeycomb scr catalyst

Buyers must focus on the pitch size (cell density), typically ranging from 4.5mm to 9.0mm, which determines the balance between surface area and pressure drop. The chemical composition, usually V2O5-WO3/TiO2, must be optimized for the specific operating temperature window (typically 300°C - 420°C). Additionally, ensure the SO2/SO3 conversion rate is <1% to prevent downstream equipment corrosion and ammonium bisulfate formation.

Verify that the supplier provides DeNOx efficiency certifications (often requiring >90% removal) and complies with international standards such as ISO 14001. Request mercury oxidation testing reports if the application involves coal-fired power plants. It is critical to confirm the mechanical strength (axial compressive strength >2.0 MPa) to withstand high-velocity flue gas and thermal shocks.

The catalyst lifespan should ideally be between 16,000 to 24,000 hours. Evaluate the Total Cost of Ownership (TCO) by factoring in the regeneration potential; high-quality honeycomb catalysts can be washed and reactivated 2-3 times, significantly reducing long-term procurement costs. Always check the specific surface area (BET), as a higher area allows for a smaller reactor volume, saving on structural steel costs.

These catalysts are primarily used in thermal power plants, cement kilns, glass factories, and waste-to-energy plants. For high-dust environments, a larger pitch (e.g., 7.0mm+) is required to prevent plugging and erosion, whereas for gas-fired turbines, a high-density cell structure is preferred to maximize efficiency in a compact space.

The main risks include physical damage (brittleness) during transit and moisture absorption. Honeycomb catalysts are ceramic-based and fragile; ensure the supplier uses reinforced wooden pallet packaging with shock-absorbent materials. Additionally, verify the HS Code (typically 381519) to avoid customs delays or incorrect duty applications.

Focus on the Performance Guarantee Agreement. Negotiate terms that link final payment to on-site commissioning results or third-party lab verification of the DeNOx rate and ammonia slip. For large-scale projects, use Made-in-China.com's Secured Trading services to ensure funds are only released upon meeting predefined quality milestones.

Due to the weight and volume, Sea Freight (FCL) is the most economical method. Request moisture-proof vacuum sealing for each module to prevent chemical degradation during sea transit. Ensure the supplier provides a Material Safety Data Sheet (MSDS) and a Non-Hazardous Goods Declaration to streamline international shipping and port handling.

Prioritize suppliers on Made-in-China.com who hold 'Audited Supplier' status. Request a factory video audit focusing on the extrusion and calcination lines, as these are the most critical phases of production. Ask for a reference list of previous international projects to confirm their experience with global emission standards.