What are the advantages and disadvantages of metal carrier?

The three-way catalytic converter is the most commonly used external purification device in automobiles, consisting mainly of a shell, shock absorber layer, carrier, and catalyst. Due to its superior performance, it has become the predominant device for reducing harmful emissions in automobile exhaust gases. The carrier enables the prepared catalyst to have the appropriate shape, size, and mechanical strength required for industrial reactors' operations while enhancing catalytic efficiency and heat resistance.

In our previous discussion, we introduced ceramic carrier materials for catalysts and explained their pros and cons. Today, let's explore the related advantages and disadvantages of metal carrier.

What are the benefits of using metal carrier?

Firstly, metal carrier have excellent conductivity and thermal conductivity. This is easily understood as it is a characteristic of metal materials. Metal carrier are generally made of aluminum, magnesium, titanium, or other stainless steel metals. They can quickly transfer the heat generated in catalytic reactions, reducing the heating time of catalysts during car startup and providing a sufficiently high temperature environment for catalytic reactions.

Secondly, metal carrier can enhance the mechanical strength and stability of catalysts. They play a supporting role in ternary catalysts and provide some degree of stability.

Thirdly, metal carrier can improve catalytic efficiency. By selecting suitable metal carrier, the crystal structure and surface morphology of catalysts can be controlled to optimize their performance. For example, by controlling the size and shape of the metal carrier, the surface area and pore structure of the catalyst can be adjusted to enhance its activity and selectivity.

Fourthly, metal carrier exhibit strong redox properties which allow them to maintain good catalytic effects under different operating conditions.

Lastly, metal carrier also influence the dispersion degree of catalysts and formation of active sites.

What are the disadvantages of metal carrier?

Metal carrier have poor heat resistance, low overload capacity, and higher cost compared to ceramic carrier, resulting in a much lower market share.

What is the difference between metal and ceramic carrier?

Overall, metal carrier perform better than ceramic ones with lower cleaning and replacement frequencies, thereby extending the lifespan of vehicles to some extent. Additionally, metal carrier exhibit higher catalytic activity compared to ceramic ones, enabling more effective reduction of harmful substances in exhaust emissions.

Although metal carrier have many advantages and a longer lifespan than ceramic ones, it does not mean they can be used for an extended period without replacement. Regular replacement of catalysts is still necessary to ensure efficient purification of exhaust gases and maintain vehicle performance.

The above discusses both the advantages and disadvantages of using metal carrier in a three-way catalytic converter. If you have any further questions or require troubleshooting assistance or customized mass production of our products, please feel free to contact us. We are committed to providing you with the most professional team and sincere attitude for the best service.

With 10 years of experience in automotive parts development and manufacturing, GRWA not only offers customers various product options but also meets personalized customization needs. Our products undergo 100% testing and adhere strictly to ISO 9001 and 16949 quality control standards during production. They have obtained international certifications such as SGS BV TUV etc., making them widely favored by car enthusiasts worldwide. Choose us once; trust us long-term,give us an opportunity for cooperation! GWRA will undoubtedly be your best choice.