What is automotive urea solution?

The urea solution for vehicles has a urea concentration of31.8%~33.2% aqueous solution.Automotive urea is a specialized exhaust purification and reduction agent for diesel engines. It is an odorless and non-toxic solution stored in special storage containers on diesel vehicles. After the exhaust gas is discharged from the engine, it will arrive together with the exhaust gasSCR catalytic converter converts nitrogen oxides into harmless nitrogen and water, greatly reducing exhaust emissions.

To achieve diesel vehicle exhaust emissionsRIMBA JIMBARAN BAYThe standard is that the consumption of urea for vehicles is about the same as that of diesel fuel4% to 6%. In 2012, the apparent consumption of diesel in China was 170 million tons, and based on a median of 5%, the annual demand for automotive urea was 8.5 million tons.Consultation hotline: 137-8720-2028

twoMarket for automotive urea raw liquidprospect

China is the second largest automobile market in the world,In 2014, the number of heavy trucks was over 3 million and increased by about 700000 units annually, while the number of passenger cars was over 1.5 million. Each countryfiveStandard heavy-duty trucks consume vehicle urea annually2 tons, then the increase in demand for automotive urea market will be explosive. Assuming that diesel vehicles will be fully implemented in the futurefiveAccording to the standard, the theoretical annual consumption of automotive urea isliquidWill reach10-15 million tons.

threeProduction process flow of automotive urea

Domestic automotive urea is mainly purified from industrial urea, and its main principle is:1) At a temperature of 70-75 ℃, urea undergoes hydrolysis in aqueous solution. 2) When the temperature is below 30 ℃, urea crystallizes again from the aqueous solution. 3) With each hydrolysis crystallization, its purity will be significantly improved. Generally, using industrial grade urea hydrolysis crystallization once can meet the standard requirements for automotive urea, with a production ratio of 1.5:1.