Urea Production

 Urea Production 


Urea was first delivered modernly by the hydration of calcium cyanamide however the simple accessibility of alkali prompted the improvement of smelling salts/carbon dioxide innovation. This is a two stage measure where the smelling salts and carbon dioxide respond to frame ammonium carbamate which is then dried out to urea. 


All the while, smelling salts and carbon dioxide are taken care of to the union reactor which works around 180-210oC and 150 bar pressure. The response combination containing smelling salts, ammonium carbamate and urea is first deprived of the alkali and the resultant arrangement goes through various decomposers working at continuously decreased weights. Here the unconverted carbamate is disintegrated back to alkali and carbon dioxide and reused to the reactor. 


The urea arrangement is concentrated by vanishing or crystallization, and the precious stones can dissolved to yield unadulterated urea as prills or granules. Prills are made by splashing liquid urea from the highest point of a high pinnacle through a counter current air stream. Granular urea is framed by splashing liquid urea into a combination of dried urea particles and fines in a turning drum. 


Urea measures fall into two classes: outer arrangement reuse frameworks; and inside arrangement stripping frameworks. In the previous, energy is spared by high carbon dioxide transformation rates while the last decreases net energy prerequisites by upgrading heat recuperation.

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