Answer to Question #233518 in Chemical Engineering for Lokika

Question #233518

Describe the manufacturing of Urea with a neat flow sheet.


1
Expert's answer
2021-09-12T00:31:57-0400

Urea is manufactured by reacting ammonia and carbon dioxide in an autoclave to form ammonium carbamate. The operating temperature is 135oC and 35 atm pressure, the chemical reaction is an endothermic reaction and so ammonia is maintained in excess to shift the equilibrium towards urea formation. Urea production is based on two main reactions.

1. Formation of ammonium carbamate

2. Dehydration of  ammonium carbamate to produce molten urea





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Comments

Aqsha
30.01.24, 19:40

Thanks

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