Mass Transfer

A. Carbon dioxide from gaseous stream using alkaline solution
B. Benzol from coke oven gas using solar oil/wash oil
C. Ammonia from coke oven gas using refrigerated water
D. Tar from coke oven gas in primary gas coolers using chilled water

A. Packed column (with stacked packing)
B. Packed column (with dumped packing)
C. Bubble plate column
D. Pulse column

A. Centrifugal
B. Packed
C. Plate
D. None of these

A. Always lower than
B. Always higher than
C. Same as
D. Dependent on the system; can be either lower or higher than

A. Boiling point
B. Freezing point
C. Vapour pressure
D. Both B. and C.

A. Wetted wall
B. Packed
C. Plate
D. Spray

A. Agitated vessels
B. Bubble cap tray towers
C. Perforated sieve tray towers
D. Spray towers

A. [xD/(RD + 1)], [RD/(RD + 1)]
B. [RD/(RD + 1)], [xD/(xD + 1)]
C. [xD/(RD + 1)], [(RD + 1)/RD]
D. None of these

A. Agitated vessel
B. Sieve tray column
C. Bubble cap column
D. Packed tower

A. Maximum number of ideal plates
B. Height of the distillation column
C. Minimum number of theoretical plates
D. Optimum reflux ratio