What is the function of truck urea solution?

[DelGavin]

Vehicles use urea primarily to reduce harmful nitrogen oxides in the exhaust into nitrogen and water. It is generally used in diesel vehicles. The following is a related introduction to urea solution: 1. Urea tank: There is a dedicated urea tank in the vehicle where the urea is filled. As long as the vehicle is running, urea will be consumed. Therefore, it is necessary to replenish it in time. Generally, about 4 liters of urea are consumed per 100 liters of diesel. The specific consumption depends on factors such as engine displacement, model, manufacturer, etc. Different road conditions and loads will also affect urea consumption. 2. Exhaust: The main harmful substances in diesel vehicle exhaust are nitrogen oxides and particulates. Technical means can be used inside the engine to reduce particulate emissions, leaving mainly nitrogen oxides in the exhaust. By injecting urea into the exhaust after-treatment device, the urea decomposes into ammonia at high temperatures, which reacts with nitrogen oxides in the presence of a catalyst to produce harmless nitrogen and water. This device is called the SCR after-treatment system.