Unit operation involved in the prilling of urea is_____________________?
Correct answer: D. Both B. and C.
- A. Evaporation
- B. Drying
- C. Crystallisation
- D. Both B. and C.
Explanation
Urea prilling converts concentrated or molten urea into solid spherical particles by spraying it and removing heat and residual moisture. Thus both drying and solidification or crystallisation effects are involved.
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