The composition of fresh feed to the high temperature, high pressure urea autoclave is______________________?
Correct answer: C. Excess liquid ammonia and compressed CO2 gas
- A. Excess liquid ammonia and liquefied CO2
- B. Liquid ammonia and excess compressed CO2
- C. Excess liquid ammonia and compressed CO2 gas
- D. Compressed ammonia gas and excess compressed CO2
Explanation
Urea synthesis is fed with excess liquid ammonia and compressed carbon dioxide gas at high pressure. Ammonia is kept liquid under these conditions, while CO2 is supplied after compression.
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