An increase in the NH3/CO2 ratio in urea manufacture results in__________________?
Correct answer: A. Increased degree of conversion of CO2 to urea
- A. Increased degree of conversion of CO2 to urea
- B. Decreased degree of conversion of NH3 to urea
- C. Decreased yield of urea
- D. Decreased specific volume of molten mass
Explanation
Using excess ammonia shifts the carbamate-to-urea synthesis toward greater conversion of CO2 to urea. The increased NH3/CO2 ratio therefore raises CO2 conversion rather than decreasing urea yield.
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