Conversion of SO2 to SO3 in Monsanto 4-pass converter is about ____________________ percent?
Correct answer: C. 98
- A. 80
- B. 90
- C. 98
- D. 100
Explanation
A four-pass sulphur dioxide converter achieves approximately 98% overall conversion to sulphur trioxide. Several catalyst beds with interstage cooling drive the exothermic equilibrium reaction toward this high conversion.
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