Why do China 6 diesel vehicles need to add urea?

[Jameson]

China 6 diesel vehicles add urea solution to reduce vehicle exhaust emissions and protect the atmospheric environment. The following is an introduction to urea solution: 1. Introduction: Vehicle urea solution is a solution made from high-purity urea and pure water. 2. Description: Vehicle urea is an essential product for heavy-duty diesel vehicles to meet the China 4 emission standards. Vehicle urea refers to a urea aqueous solution with a urea concentration of 32.5% and the solvent being ultra-pure water, with raw materials being specialized vehicle urea and ultra-pure water. 3. Principle: Vehicle urea must use first-grade ultra-pure water from the electronics industry. Since the SCR catalyst carrier is highly susceptible to metal ion poisoning and thus loses its catalytic effect, vehicle urea solution must use first-grade ultra-pure water from the electronics industry.