Urea is what the car yesterday, reporters from the city living environment committee was informed that from April 1, Shenzhen administrative areas of the country's total sales of all gas stations Ⅴ automotive diesel. In addition, for the use of the SCR system as a post-treatment device for diesel vehicles must be added urea vehicle, in order to ensure the national emission standards. As a result, the cost of a liter of diesel rose 2 hair after adding urea. Emissions of non-compliance of the vehicle, according to the "Shenzhen Special Vehicle Exhaust Pollution Prevention Act," will be fined 500 yuan. Most stations have a car with sales of urea NOx can form toxic photochemical smog and acid rain have a corrosive effect, and acid rain damage is huge, substantial cuts will not only crops, forest pests increased significantly, but also on human and animal health severely affected. PM (particulate matter) on the human respiratory system has great harm, can cause severe chronic lung disease, or cancer-causing automobile urea, in addition to the four national automotive urea tube, fine particles are the main cause of the haze. The best choice to reduce annual emissions of 68 tons of sulfur emissions is SCR. At present, the existing requirements for sulfur content ≤350ppm 柴油国 GB19147-2009 standard requires that end technology ECR-DOC, do this to promote conditions in China has temporarily. SCR 350ppm sulfur oil is no problem, there is the technical basis to that end. As a result of the country's four-engine SCR technology better fuel economy than the EGR technology, small changes to the engine, fuel and oil requirements are lower, with the advantage of continuity in the technical upgrade, SCR technology is the most suitable for China's emission reduction technology. Car urea solution would freeze at -11 ℃ start auto urea listed companies, the actual use will be completely frozen at -20 ℃ when on. Current technology is reduced by the addition of modifying agent solution freezing point, plus a means of heating devices to prevent solidification of the solution. After thawing can be used. Vehicle urea solution with high purity without any other additives formulated together with the urea solution and pure water, the solution of urea content was 32.5% (mass fraction). Most heavy-duty diesel engine manufacturers at home and abroad using the SCR (Selective Catalytic Reduction) technology to meet Euro IV, Euro Ⅴ vehicle emission standards. SCR technology choice of vehicle must be added as a catalyst for reducing the urea solution, the vehicle emissions standards . Automotive urea solution standard, Chao car urea, quality king thousand net provided by the Dongguan City Environmental Protection Equipment Co., Ltd .. Dongguan thousand net Environmental Equipment Co. (www.qclean.com.cn) strong, credible, high water in Dongguan, Guangdong preparation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead thousand net and you hand into the brilliant, for a better future!