Adblue is a liquid solution that is used in diesel engines to reduce harmful emissions. It is made up of 32.5% high-purity urea and 67.5% deionized water. When Adblue is injected into the exhaust system of a diesel engine, it breaks down into ammonia and carbon dioxide, which then react with the nitrogen oxides in the exhaust to form harmless nitrogen and water vapor.

Urea is a nitrogen-rich compound that is commonly used as a fertilizer. However, it can also be used to make Adblue. The urea used to make Adblue must meet strict purity standards to ensure that it does not contain any impurities that could harm the engine or the environment.

The difference between vehicle urea and fertilizer urea is that vehicle urea is a high-purity grade of urea that is specifically designed for use in Adblue. Fertilizer urea, on the other hand, is a lower grade of urea that is used primarily as a fertilizer.

Here are some characteristics of urea that can be used to make Adblue:

High Purity: The urea used to make Adblue must be of high purity, typically 99.5% or higher. This ensures that there are no impurities that could harm the engine or the environment.

Low Biuret Content: Biuret is a compound that can form during the production of urea. However, it can cause problems when used to make Adblue. Therefore, the urea used to make Adblue must have a low biuret content, typically less than 0.3%.

Low Aldehydes Content: Aldehydes are another type of impurity that can form during the production of urea. However, they can also cause problems when used to make Adblue. Therefore, the urea used to make Adblue must have a low aldehydes content, typically less than 0.2%.

Low Phosphates Content: Phosphates can cause problems when used to make Adblue. Therefore, the urea used to make Adblue must have a low phosphates content, typically less than 0.1%.

Low Ammonium Content: Ammonium can cause problems when used to make Adblue. Therefore, the urea used to make Adblue must have a low ammonium content, typically less than 0.02%.

High Water Solubility: The urea used to make Adblue must be highly water-soluble to ensure that it can be easily dissolved in deionized water to create the Adblue solution.

The process of making Adblue from urea involves dissolving the urea in deionized water to create a solution. The solution is then heated and mixed with a catalyst to break down the urea into ammonia and carbon dioxide. The resulting solution is then cooled and filtered to remove any impurities before being packaged and sold as Adblue.

The productivity of urea to Adblue varies depending on the purity of the urea and the efficiency of the production process. However, on average, one ton of urea can produce approximately 1,500 liters of Adblue.

The price of urea varies depending on the region and the market demand. In Russia, the price of urea is currently around $250 per ton, while in China, it is around $300 per ton.

In summary, urea can be used to make Adblue, a liquid solution that is used in diesel engines to reduce harmful emissions. The urea used to make Adblue must meet strict purity standards, and there is a difference between vehicle urea and fertilizer urea. The process of making Adblue from urea involves dissolving the urea in deionized water, heating it, and mixing it with a catalyst. The productivity of urea to Adblue varies, and the price of urea varies depending on the region and market demand. The import and export of urea for making Adblue is a global business.