Before answering your question, Nanjing Taihe China Science and trade first briefly introduce what urea is? Do not misunderstand, this urea is not simple agricultural fertilizer urea, the truck added urea solution: generally composed of 32.5% urea and 67.5% water, if we mix, the concentration can not be so accurate. Then the urea used in urea solution for vehicles is high purity urea. Agricultural urea cannot meet the purity requirements, and the impurities contained in it will lead to the failure of the post-processing system.

Let's go back to the topic: Why urea is added to trucks? Because diesel exhaust contains a large amount of nitrogen oxides (NOx), which are directly discharged into the air, its high toxicity poses a threat to human beings and other organisms. In order to reduce air pollution, after the implementation of National IV emission standards, SCR (selective catalytic reduction) has become an essential component of heavy diesel vehicles, which involves a catalytic reaction. When urea meets nitrogen and oxygen compounds discharged by diesel engine, chemical reactions will occur, converting nitrogen and oxygen compounds into nitrogen and water, so as to complete the entire exhaust gas purification process.

The above is N-methyl morpholine manufacturer for you to sort out the relevant information, I hope to help you!