From January 1st next year onwards, the nationwide diesel vehicles will be the implementation of national IV emission standards mandatory. With the popularization of IV vehicle emission standards for diesel in the implementation, the domestic car development by urea market ushered in a new opportunity. Although the market in recent years has just started, but domestic demand potential is huge, car sales are growing rapidly with urea. Research shows that the automobile exhaust emissions of total pollutants from PM2.5 30%, is caused by China's haze weather "culprit" one of, among them, the tail gas pollution from heavy duty diesel vehicle is higher than 2/3. Data show that car ownership in China accounted for only 17% of the diesel vehicle emissions of nitrogen oxides and PM pollutants, total vehicle emissions of 60% and 90% respectively. To this end, the Ministry announced that from 2015 onwards, the full implementation of national IV standard for diesel vehicle. It is understood that the current national IV standard diesel car most are using SCR engine technology, this technology needs to add a car with AdBlue, also known as urea solution, it is a kind of NOx selective catalytic reduction agent, is based on ultra-high purity car with 32.5% urea and synthesis of pure water. Diesel cars "drink" the urea, nitrogen oxides emissions can be decomposed as in nitrogen and water vapor and no pollution, can be directly reduced haze pollution, to meet China IV emission standards for nitrogen oxides PM and limit. At the same time, the use of this technique in the country's IV engine fuel economy, small changes, the fuel and oil has low requirement on the engine, in the upgrading of technology has the advantage of continuity, so the SCR technology is a line of heavy duty diesel vehicle emission reduction technology is most suitable for the situation of our country. At present, domestic medium and heavy duty truck, bus, bus most uses the SCR technology to reach the discharge standard of country IV requirements, therefore, become with urea and diesel equivalent consumables required for the SCR system of the car, the broad market prospects. In 2011 China vehicle urea consumption at about 11000 tons, accounting for only the world car with urea solution consumption 1%. As the national IV standard has not been enforced in the country, currently only Beijing, Shanghai and other pilot the use of SCR technology in the public transportation system, resulting in urea market is not open for vehicle. However, with the comprehensive promotion of diesel in the IV standard, the car with the urea demand in rapid growth, is expected in 2015 is expected to reach 4000000 ~ 7000000 tons. On the other hand, from the diesel car retains quantity point of view, the market demand will also achieve rapid growth. 2011 domestic heavy-duty diesel vehicle sales of 880600 vehicles, sales in 2012 636000, 2013 annual sales of 750000 ~76 million. Relevant professionals prediction, which is equipped with a SCR system for heavy duty diesel vehicles will be at least 500000 vehicles a year growth, retains the quantity is expected theoretically reached 1250000 units by the end of 2015 China IV diesel vehicles, by the end of 2017 theoretically could reach 2250000 vehicles. In accordance with the diesel yield estimates, is expected to 2018, China's automotive market capacity will reach 7000000 tons of urea. Therefore, the car with the urea market scale sharply increase will become the trend of the times. However, in our country, can be in line with international standards of production car with urea enterprises only Jiangsu Kelan Su, Sichuan Meifeng limited several, among them, Jiangsu plain and Sichuan Meifeng Qur'an vehicle AdBlue capacity are 600000 tons.