Marine urea solution - diesel engine exhaust treatment fluid, also known as nitrogen oxide reducing agent (commonly known as: marine aqueous urea solution 40%, AUS40).

Now the requirements for marine urea are different. Most of them are urea solution with a concentration of 40%. Among the daily customers, we have also distributed urea with a concentration of 30% for vehicles, which means that the main body of the diesel engine has not been said. A unified labeling concentration, if daily customers are in the inquiry process. We must understand the customer's standard requirements for solution concentration. The concentration is different, and the cost difference is still relatively large. Among other elements, it is almost the same as the vehicle urea standard.

How much AUS40 should be added to the ship at one time is also a question that everyone is concerned about. Because the size of the ship is different, the solution storage tanks that come with the ship are also different. Like some voyage ships, they will even consider returning some Because the consumption of ships is generally relatively large, the packaging requirements used are also mainly ton barrels, which are convenient for filling and easy to store.

According to the existing exhaust emission standards, ships must now add AUS40, and the emission does not meet the standard. Marine urea technical parameters: urea content (Urea Content)% (m/m) 39.5 – 40.5; (the general concentration standard is in About 40%, we should also pay attention to a problem. Some small ships can also be added according to the standard of urea for vehicles. During this process, it is necessary to understand the standard value of a concentration with the customer):

Density / 20 ℃ (Density at 20°0C) g/cm31.093 – 1.107;

Refractive Index (Refractive Index at 20°0C) -1.395 – 1.398;

Alkalinity (Alkalinity as NH3)% (m/m)< 0.2;

Biuret (Biuret) % (m/m)< 0.3;

Aldehydes (Aldehydes) mg/kg< 5.0;

Insoluble Matter (Insoluble Matter) mg/kg< 20.0;

Phosphate (PO4) mg/kg< 0.5;

Sodium (Sodium) mg /kg< 0.5;

Aluminum (Aluminum) mg/kg< 0.5;

Calcium (Calcium) mg/kg< 0.5;

Chromium (Chromium) mg/kg< 0.2;

Copper (Copper) mg/kg< 0.2;

Iron (Iron) mg /kg < 0.5;

Magnesium (Magnesium) mg/kg < 0.5;

Nickel (Nickel) mg/kg < 0.2; Zinc (Zinc) mg/kg < 0.2;

Potassium (Potassium) mg/kg < 0.5.

With the increasing popularity of marine urea solution (AUS40), there will also be a standardized process for its production standards, because the exhaust gas emitted by ships is also very large, and environmental energy saving has always been an inevitable problem in development. Therefore, with the advancement of technology , The perfection of the formulation of standards can better protect the environment. In the process of producing marine urea solution, we have always produced standard standards, so as to truly protect the environment.