What is the purpose of adding urea in large vehicles?

1 Answers
SanFaith
07/25/25 6:36am
Adding urea in large vehicles serves the purpose of catalysis and conversion. The reasons are as follows: 1. Urea is specifically used for diesel engines because diesel engines emit harmful nitrogen oxide gases during operation, which are detrimental to the atmosphere and human health. Long-term exposure to such gases can cause respiratory diseases. 2. To reduce the harm of these gases to the atmosphere and humans, urea is utilized. When added, it triggers a catalytic reaction. 3. When urea encounters nitrogen oxide gases emitted by diesel engines, a chemical reaction occurs, converting the nitrogen oxides into nitrogen and water, which are harmless to the atmosphere and human health.
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