Recently, the Ministry of Industry and Information Technology released the announcement No. 27 of this year, specifying that the deadline for the sale of diesel vehicles at the “National 3†emission level is the end of 2014. At this point, the timing of the full upgrade of diesel vehicle emissions to the "National IV" standard is finally confirmed. To achieve the “ National IV †emission standard, the technical route taken by domestic heavy-duty diesel vehicles is SCR (Selective Catalytic Reduction) technology. The key to this is to add urea for vehicles into the reduction system. Otherwise, the national IV emission standard can not only be achieved, but also Air pollution is more harmful. As of April, the China Automobile Association’s survey of 672 gas stations in 18 provinces and 2 municipalities showed that none of the 672 gas stations had dedicated refuelling equipment, and only 2% of gas stations supplied small packages and Bottled products; in the 145 large-scale auto parts market car service stations in 73 prefecture-level cities in 18 provinces, the supply rate of bottled urea was only 58%. At the same time, the management of the supply system of urea for vehicles also faces the problem of unclear responsibilities for monitoring urea quality. Dong Yang, Secretary-General of China Automobile Association, stressed that the quality of urea is traditionally managed by the Ministry of Agriculture, and that the supervisory responsibility for urea for vehicles needs to be implemented as soon as possible. The establishment of a vehicle urea supply system involves not only PetroChina and Sinopec, but also private gas stations that account for about 20% of market share. It is necessary to ensure that the "National IV" emission standard can be implemented smoothly by the end of 2014. Before that, gas stations along highways and national highways must be able to supply urea, and the quality supervision system for urea products must be strengthened to ensure that users can add on time as needed.
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