What is the function of adding urea to trucks?
1 Answers
Trucks add urea, which reacts with nitrogen oxides emitted by diesel engines. It converts nitrogen oxides into nitrogen and water, both of which are harmless to the atmosphere and human health. Urea is used specifically for diesel engines because they emit nitrogen oxides, a polluting gas, during operation. To reduce the harm of these gases to the atmosphere and humans, urea is employed. Additional information is as follows: 1. Household cars: Most household cars today are equipped with gasoline engines, which use a three-way catalyst to address exhaust issues. The three-way catalyst is a precious metal that converts exhaust gases from gasoline engines into nitrogen, so most household cars do not require urea. 2. Regular urea replenishment: Regardless of the engine type, there is a specialized device, similar to a container, that holds either urea or a three-way catalyst. For diesel engines, as the vehicle operates, it continuously emits nitrogen oxides while consuming urea, so urea needs to be replenished regularly. 3. Consequences of not adding urea: The power and fuel consumption of diesel vehicles are affected by urea. If a diesel vehicle does not have this exhaust treatment device or uses inferior products, it can cause the engine to automatically reduce speed and negatively impact the catalyst in the SCR catalytic reaction tank. Damage to the exhaust treatment device can be troublesome to repair, not only affecting the environment but also incurring high repair costs.
