Evaporation characteristics of urea solution
Thread Content
In an evaporation system, why does the concentration of urea solution increase as the pressure decreases?
Check the urea concentration temperature and pressure corresponding curve and you will understand.
I’ve seen the curve, but I don’t understand the principle. Can you explain it in detail?
The function of the evaporation system is to thicken the urea solution. Taking away the water through vacuum is generally a two-stage evaporation. The lower the pressure, the easier it is to decompose. You can check the photo. This post was last edited by lxq700918 on 2009-2-25 17:39 ]
The urine entering the evaporation system mainly contains a large amount of water (there is also a small amount of carbon dioxide and ammonia). The boiling point of water decreases as the pressure decreases. Under the conditions of heating and decompression, the water is extracted!