240*101.6mm Honeycomb Ceramic SCR Catalyst High Efficiency Carrier for Diesel Exhaust Treatment

Description

Material: ceramic

Size:

Diameter:240mm
Length:101.6mm

Price includes 1 piece

Whatsapp:+8613805609403

Email: kyrlw1@protonmail.com

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• How Does SCR Work?
• The SCR process relies on a series of chemical reactions facilitated by a catalyst to convert NOx into nitrogen and water. The reaction takes place in the following steps:
• DEF Injection: Diesel Exhaust Fluid (DEF), a mixture of urea and deionized water, is injected into the hot exhaust gases before they enter the SCR catalyst.
• Urea Decomposition: At high exhaust temperatures (around 300-400°C), urea (NH₂CONH₂) decomposes into ammonia (NH₃) and carbon dioxide (CO₂) through the following reaction:
• 
  NH2CONH2+Heat→2NH3+CO2\text{NH}_2\text{CONH}_2 + \text{Heat} \rightarrow 2\text{NH}_3 + \text{CO}_2NH2CONH2+Heat→2NH3+CO2
  This step is crucial as ammonia (NH₃) is the key reagent in the SCR process for reducing NOx emissions.
• NOx Reduction: The generated ammonia then reacts with the nitrogen oxides in the exhaust gases over the SCR catalyst, converting NOx into harmless nitrogen (N₂) and water vapor (H₂O). The primary chemical reactions involved are:
• Reduction of Nitrogen Dioxide (NO₂):
  4NH3+6NO2→5N2+6H2O4\text{NH}_3 + 6\text{NO}_2 \rightarrow 5\text{N}_2 + 6\text{H}_2\text{O}4NH3+6NO2→5N2+6H2O
  This reaction reduces NO₂ into nitrogen and water.
• Reduction of Nitric Oxide (NO):
  4NH3+4NO+O2→4N2+6H2O4\text{NH}_3 + 4\text{NO} + \text{O}_2 \rightarrow 4\text{N}_2 + 6\text{H}_2\text{O}4NH3+4NO+O2→4N2+6H2O
  
• This reaction reduces NO in the presence of oxygen to produce nitrogen and water.
• 

Why Choose Our SCR Products Over Competitors?

While many SCR products on the market offer basic emission reduction capabilities, our SCR carriers provide several distinct advantages that set us apart from other sellers on AliExpress and other e-commerce platforms:

Advanced Honeycomb Ceramic Design:

 Our SCR products feature a robust silicon carbide (SiC) honeycomb structure that offers a high surface area-to-volume ratio. This design not only maximizes catalytic reaction efficiency but also minimizes backpressure, ensuring smoother engine performance and fuel efficiency.

Premium Coating Materials:

We use a combination of platinum, palladium, and rhodium in our coating materials, which enhances the SCR’s ability to catalyze reduction reactions and withstand thermal aging. This ensures a longer lifespan and greater durability compared to standard SCR products.

High NOx Conversion Efficiency:

 Our SCR catalysts achieve a NOx conversion rate of up to 95%, significantly reducing harmful emissions and meeting the stringent requirements of Euro 6, EPA, and other emission standards.

Thermal and Mechanical Stability:

With an operating temperature tolerance of up to 1200°C, our SCR products maintain their structural integrity and performance even in extreme exhaust conditions. This high temperature resistance is essential for heavy-duty applications and ensures long-term reliability.

Superior DEF Distribution:

The honeycomb design ensures uniform distribution of the DEF across the catalytic surface, preventing ammonia slip and enhancing the overall efficiency of the reduction process.

Customizable Solutions:

We offer customization options for different cell densities, sizes, and coating materials based on the specific requirements of our customers. This flexibility allows us to provide tailored solutions for various engine configurations and emission standards.

Application and Installation Guidelines

Our SCR products are designed to fit a wide range of diesel vehicles, including trucks, buses, and industrial machinery. For optimal performance, the SCR unit should be installed as close to the engine as possible, typically downstream of the Diesel Oxidation Catalyst (DOC) and upstream of the DPF (Diesel Particulate Filter), if applicable.

Installation Tips:

Ensure that the SCR unit is installed in a position where exhaust temperatures are sufficient for urea decomposition and NOx reduction.

Use high-quality DEF and maintain proper DEF levels to prevent catalyst poisoning or inefficiency.

Regularly monitor the system for DEF injection accuracy and SCR catalyst health to maintain peak performance.

Conclusion 

Our SCR products are engineered to deliver superior performance, efficiency, and durability. With advanced materials, innovative designs, and customizable solutions, we strive to provide our customers with the best emission control technologies on the market. Choose our SCR products to ensure compliance with emission regulations while optimizing engine performance and contributing to a cleaner environment.