Ternary Carrier Production Technology

The ternary catalyst is the most important external purification device installed in the automobile exhaust system, and the ternary carrier is a key component of the ternary catalyst, which is usually made of honeycomb ceramic material. Ceramic support is the catalyst carrier, providing the catalyst reaction surface area and stability. In this paper, the production process of ceramic carrier of three-way catalyst and its application in specific fields will be introduced in detail from many aspects.

1. Manufacturing Process

(1) Raw material preparation

The main components of ceramic carrier of ternary catalyst are alumina, silicon oxide and yttrium oxide. These raw materials need to be processed by grinding, screening, mixing and other processes to ensure the consistency of the composition ratio and physical characteristics of the ceramic carrier.

(2) Forming

After the raw materials are mixed, they need to be formed. At present, the commonly used molding technology is pouring molding, extrusion molding and injection molding. Among them, injection molding is a commonly used molding technology, which can make the ceramic support more evenly distributed, improve the stability and catalytic performance of the support.

(3) Drying

After forming, the ceramic carrier needs to be dried by a three-way catalyst to achieve a certain strength and stability. Drying treatment is also an important step to control the sintering process of ceramic support.

(4) Sintering

The last process of ceramic support is sintering, which aims to strengthen the physical and mechanical properties of the support and improve the stability and activity of the catalyst. The sintering temperature and time are important factors affecting the performance of the support. Too high or too low temperature and time will affect the composition proportion and physical properties of the carrier.

2.Advantages and application areas

The ceramic carrier of ternary catalyst has the characteristics of high temperature corrosion resistance, high specific surface area and good stability. Therefore, it has a wide range of application prospects in the fields of automobile exhaust gas purification, industrial waste gas treatment and environmental governance.

3.Summary

Ceramic support is an indispensable part of the three-way catalytic converter, and its manufacturing process requires strict process control and material screening. In practical applications, appropriate ceramic carrier materials and manufacturing processes need to be selected according to specific needs to improve the performance and stability of catalytic converters.

Choose GRWA's three-way catalytic converters to provide peace of mind for your car.