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What is the car with the urea tank?
SCR (Selective Catalyst Reduction): selective catalytic reduction systems. For use in diesel engine exhaust on the country four levels of purification, the use of urea as the reducing agent, and the only one of the NOx (NO and NO2, with considerable toxicity, than the community currently PM2.5 attention to effects on human large Multi) for processing, so called selective catalytic reduction (or conversion). This system requires uses a catalyst (similar to the three-way catalyst gasoline vehicles) in the conventional muffler, but are also required to use a urea supply system and injection control system, a high degree of complexity.
Selective catalytic reduction system, is one of the urea as an additive technology, but the drawback is that to implement this technique requires a high discharge temperature, and then you need the bigger the better engine displacement, resulting is fuel consumption. Reduce nitrogen oxide emissions, the effectiveness of SCR has been well known. SCR is by incorporating an aqueous solvent injected urea SCR catalyst is added to the exhaust gas to reduce nitrogen oxide emissions. Although this urea solvent must be stored in a tank lorry container, but compared to other technologies, the use of SCR is possible to achieve higher fuel economy and lower operating costs. It was confirmed that at different engine operating environment, SCR can reduce nitrogen oxide emissions by 65% ??to 99%. SCR technology has been used in the turbine up to 15 years. However, as a car with SCR technology to achieve smaller size, more durable and able to meet the different needs of truck engine functions. In addition, the system needs to be considered when designing to prevent unreached ammonia from the exhaust pipe, the occurrence of ammonia leak.
Selective catalytic reduction system, is one of the urea as an additive technology, but the drawback is that to implement this technique requires a high discharge temperature, and then you need the bigger the better engine displacement, resulting is fuel consumption. Reduce nitrogen oxide emissions, the effectiveness of SCR has been well known. SCR is by incorporating an aqueous solvent injected urea SCR catalyst is added to the exhaust gas to reduce nitrogen oxide emissions. Although this urea solvent must be stored in a tank lorry container, but compared to other technologies, the use of SCR is possible to achieve higher fuel economy and lower operating costs. It was confirmed that at different engine operating environment, SCR can reduce nitrogen oxide emissions by 65% ??to 99%. SCR technology has been used in the turbine up to 15 years. However, as a car with SCR technology to achieve smaller size, more durable and able to meet the different needs of truck engine functions. In addition, the system needs to be considered when designing to prevent unreached ammonia from the exhaust pipe, the occurrence of ammonia leak.
