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A butane isomerisation process produces 70 kmole/hr of pure isobutane. A purge stream removed continuously, contains 85% n-butane and 15% impurity (mole%). The feed stream is n-butane containing 1% impurity (mole%). The flow rate of the purge stream will be | |
A. | 3 kmole/hr [Wrong Answer] |
B. | 4 kmole/hr [Wrong Answer] |
C. | 5 kmole/hr [Correct Answer] |
D. | 6 kmole/hr [Wrong Answer] |