What is the function of automotive urea?
2 Answers
Automotive urea is an essential additive for SCR (Selective Catalytic Reduction), used to reduce nitrogen oxide pollution in diesel vehicle exhaust. Below are the specific details: 1. The composition of automotive urea consists of 32.5% high-purity urea and 67.5% deionized water. 2. The operation process of the SCR system is as follows: when nitrogen oxides are detected in the exhaust pipe, the urea tank automatically sprays diesel exhaust fluid, which then undergoes a redox reaction with the nitrogen oxides in the SCR catalytic reaction tank, producing non-polluting nitrogen and water vapor that are discharged.
I've been driving diesel vehicles for over a decade, and AdBlue primarily helps the exhaust system reduce pollutant emissions. After being added to the vehicle, it converts into ammonia in the exhaust pipe, specifically targeting harmful nitrogen oxides, transforming them into harmless water and nitrogen gas. This makes the vehicle's exhaust much cleaner and better for the air. I usually check the AdBlue level when refueling and top it up myself when it's low—simple operation. If not topped up, the dashboard will issue a warning, and prolonged neglect can lead to engine power being limited, making it impossible to drive fast. This design is quite eco-friendly, especially reducing smog in urban traffic jams; but I'd remind everyone to replenish AdBlue regularly to avoid vehicle malfunctions and costly repairs. Overall, it makes diesel vehicles more hassle-free and environmentally friendly, an essential companion for my driving.
