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Simple block diagram for the Urea plant<br />

Inert<br />

Gases and inert<br />

Bagging and loading<br />

Ammonia<br />

CO 2<br />

Urea synthesis<br />

2NH 3 + CO 2 = NH 4 COONH 2<br />

NH 4 COONH 2 = CO(NH 2 ) 2 + H 2 O.<br />

Recycle section<br />

Evaporation<br />

Granulation Unit<br />

Steam<br />

Condensers<br />

Ammonia water tank<br />

Steam and condensate unit<br />

Desorption<br />

9

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