Three-way Substrate- Double Protection of Environmental Protection And Performance

In today's society, cars have become an indispensable means of transportation for daily travel. With the rapid development of economy and society, the number of motor vehicles is increasing, and the environmental pollution caused by vehicle exhaust has become one of the key factors threatening human health. Research shows that motor vehicle exhaust contains 110-200 kinds of chemicals, including not only carbon monoxide, carbon nitride, lead and other pollutants, but also some fine dust particles, which seriously damages the health of travelers and is easy to induce respiratory diseases.

The harm of urban motor vehicle exhaust pollution is mainly reflected in the following points, first, motor vehicles are low-level pollution, mainly emitted in the place of one meter from the ground, near the human breathing belt, easy to be inhaled by the human body, the harm is more direct, and even induce cancer. Second, emissions of hydrocarbons, carbon monoxide, hydrocarbons and other pollutants will not only harm the health of travelers, causing haze weather and light pollution, the history of the famous 1943 Los Angeles photochemical smog event is the best evidence. At the same time, the excessive emission of automobile exhaust will also induce acid rain, erosion of buildings, plants, soil, etc., causing pollution and damage to the climate environment and urban buildings.

As an important vehicle exhaust purification device, the three-way substrate can effectively transform harmful gases into harmless substances and greatly reduce the emission of harmful pollutants in the exhaust. Therefore, the role of the three-way catalytic converter in environmental protection is crucial.

Working Principle：

Three-way catalysts are usually composed of precious metals such as platinum (Pt), palladium (Pd) and rhodium (Rh). Its working principle is based on catalytic reactions that convert carbon monoxide (CO), nitrogen oxides (NOx) and hydrocarbons (HC) from exhaust gases into carbon dioxide (CO2), nitrogen (N2) and water (H2O) at the right temperature. This catalytic conversion process relies on the interaction of precious metals and oxides in the ternary catalyst.

Composition Structure:

Three-way substrate is usually composed of a ceramic substrate and a precious metal coated on the substrate. The ceramic matrix is usually made of alumina (Al2O3) or silicon dioxide (SiO2) and other materials, which has high temperature stability and good physical properties. The precious metal coatings act as catalysts, combining with the substrate to form the active component that provides the surface needed to catalyze the reaction.

Role in Automobile Exhaust Treatment:

In recent years, with people's increasing concern about environmental problems and the continuous introduction of new environmental protection regulations, the restrictions on exhaust emissions have gradually increased, and the governance of vehicle exhaust emissions has become a social consensus. As the core technology of automobile emission control, Three-way substrate has significant environmental benefits. By installing Three-way substrate, the emission of pollutants in the tail gas can be effectively reduced, so that the emission can meet the environmental protection standards, thereby improving air quality and protecting human health. At the same time, it also helps to improve the fuel efficiency of vehicles, prompting car manufacturers and consumers to pay more attention to environmental performance, and promote the sustainable development of the automotive industry.

With the enhancement of environmental awareness and the improvement of emission standards, the development and application of three-way catalytic converters will continue to contribute to the sustainable development of the automotive industry.

In the trend and background of environmental protection, GRWA has successfully developed a three-way catalytic converter product with significant advantages by virtue of its profound technology accumulation and innovation ability. Our products use advanced catalytic materials and unique structural design, which can effectively extend the service life while ensuring efficient conversion. In addition, we offer customized solutions for different types of vehicles and engine characteristics to meet the diverse needs of our customers.

Looking to the future, with the continuous expansion of the new energy vehicle market and the increasingly strict environmental protection policies, Three-way substrate market will usher in a broader space for development. GRWA will continue to adhere to the concept of innovation and environmental protection, and is committed to the development of higher performance and high-quality three-way catalytic converter products, contributing to the global environmental protection cause.