Application of VOC catalyst in automobile exhaust

Nowadays, cars have become a very important part of our lives. It has brought great convenience to our lives, but it has also caused pollution to our living environment. So what is the main pollution of cars? Where does it come from? How should we deal with these pollutions efficiently? Let's discuss it today.
The main source of automobile exhaust pollution comes from the combustion process and emission system of internal combustion engines. Combustion products of internal combustion engines: When automobile engines burn gasoline or diesel, they will produce a large amount of harmful gases, such as carbon monoxide, nitrogen oxides, etc.; particulate matter: soot particles and inhalable particulate matter produced by gasoline combustion, long-term exposure can cause respiratory diseases. These pollutants can have serious impacts on the environment and human health, including photochemical smog, greenhouse effect, acid rain and other problems. ‌
The invention of VOC catalysts has successfully saved the harm caused by automobile exhaust to humans. VOC catalysts, especially three-way catalysts, play a key role in automobile exhaust purification. Its main function is to convert harmful substances in exhaust gas into harmless substances. The three-way catalyst converts CO, HC and NOx in exhaust gas into water, carbon dioxide and nitrogen through catalytic oxidation and reduction reactions.

VOC catalyst is a substance that can accelerate chemical reactions, but it does not participate in the reaction itself, nor does it change the direction and balance of the reaction. The role of the catalyst is to reduce the activation energy of the reaction and increase the rate and conversion rate of the reaction. When the exhaust gas passes through the catalyst, the harmful substances will react chemically with the catalyst, turning them into substances such as water vapor, carbon dioxide and nitrogen, thus reducing the generation of pollutants. This process is called catalytic reduction, which is the core of automobile exhaust purification. Through the chemical reaction produced by the catalyst, the pollutants in automobile exhaust can be greatly reduced to achieve the purpose of purification.

author: Hazel
date: 2025-06-26