Dongguan car urea water, Dongguan City car with urea solution water factory

Diesel engine exhaust treatment liquid (commonly known as: automotive urea, urea car, car environmental urea), in China and Europe called AdBlue, in the Americas called DEF, in Brazil called ARLA32 AdBlue is a composition of 32.5% high. high purity urea and 67.5% pure deionized water was transparent liquid, with a touch of ammonia odor. If spilled, evaporation and crystallization. AdBlue is used with SCR (Selective Catalytic car after reducing exhaust treatment) car systems, trucks, buses and heavy-duty off-road diesel engine vehicles is SCR technology must be used to consumables, together with the SCR catalyst will harmful nitrogen oxide emissions from diesel engines is converted into harmless water vapor and nitrogen. The main component of the SCR system includes a catalyst, AdBlue injection device, AdBlue and AdBlue container dose controller. Almost all of Europe, the United States and Asia, including China's heavy-duty vehicle manufacturers for vehicles equipped with selective catalytic reduction system and with AdBlue fluid, in order to meet the new emission standards for nitrogen oxides (such as Euro IV, Euro V) AdBlue and SCR technology under the joint action, to optimize engine performance and fuel consumption, reduce diesel fuel consumption can be as high as 6%, significantly lower costs. The average consumption of AdBlue is generally 5% of diesel consumption, consumption highway driving is approximately 1.5 liters per 100 kilometers. AdBlue can be used only in combination configuration engine SCR system, because it is neither fuel nor fuel additive. AdBlue perform in line with ISO22241, DIN70070 standards within CEFIC regulations and to ensure the effective operation of the SCR system. AdBlue is not harmful to the environment and is classified as low-risk transportable liquid. Vehicle urea at a concentration of 32.5% ultra-pure water and the solvent is an aqueous solution of urea, the raw material for the production of urea crystals and ultrapure water, the key point is that the purity of raw materials. From the production process, although the automotive urea raw material purity requirements than the general industrial demand, but domestic technology already meet the actual application requirements. Vehicle urea production process is not sufficient to build high barriers to entry. Domestic vehicle urea purification come mainly from industrial urea, the main principle is: 1) at a temperature of 70-75 ℃, urea hydrolysis in aqueous solution. 2) When a temperature below 30 ℃, urea re-crystallized from the aqueous solution. 3) Every time the hydrolysis of crystallization, its purity will be a substantial increase in the general level of industrial use of urea hydrolysis crystallized once, you can reach the vehicle urea standards, their output ratio of 1.5: 1. Automotive electronics industry must use a urea ultrapure water. Automotive urea SCR catalyst support because prone metal ion poisoning and lose catalytic effect, so the car must be used with urea solution in the electronics industry an ultrapure water (resistivity ≥18MΩ? Cm). The car will start with urea solution freezes at -11 ℃, the actual use will be completely frozen at -20 ℃ on time. Current technology is reduced by the addition of the modifier solution freezing point, plus a means of heating devices to prevent solidification of the solution. Vehicle urea solution (AdBlue) is used without any other additives and water purity urea solution formulated together, the solution of urea content of 32.5% (by mass). Most domestic and foreign manufacturers of heavy-duty diesel engines using SCR (Selective Catalytic Reduction) technology to meet Euro IV, Euro Ⅴ vehicle emission standards. Choose SCR technology vehicles must add urea solution as catalytic reducing agent, the vehicle emissions standards.