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Mass Transfer

Mass Transfer
H₂S present in naphtha reformed gas is removed by absorbing with

HCl
Vacuum gas oil
Ethanolamine
K₂CO₃

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Mass Transfer
If the overall efficiency and Murphree plate efficiency are equal, then both the equilibrium and operating lines are

Parallel
Both A & B
Neither A nor B
Straight

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Mass Transfer
A good solvent used for absorption should not have very high

Viscosity
Vapor pressure
Freezing point
All of these

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Mass Transfer
Diameter of raschig rings used in packed tower in industry is normally around __________ inches.

12
8
2
18

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Mass Transfer
Boiling point diagram is not affected by the ambient

Temperature
Pressure
Both B and C
Humidity

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Mass Transfer
The caking of crystals can be prevented by

Maintaining low critical humidity
Both A and C
Maintaining high critical humidity
Coating the product with inert material

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