A. Rapid absorption rates and good heat transfer characteristics
B. Improved flooding characteristics
C. Low pressure drop on pumping
D. All A., B. and C.
Related Mcqs:
- For gas absorption, low viscosity solvents are preferred, because of their ____________________?
A. Better flow characteristics
B. Low pumping pressure drop
C. Rapid absorption rates
D. All A., B. and C. - Which of the following is a suitable absorbent for removal of H2S from natural gas ?
A. Vetrocoke solution
B. Monoethanolamine (MEA)
C. Dilute
D. Hot water - According to Poiseuille’s law, the permeability for gas flow through a capillary is proportional to (where, μ = gas viscosity)___________________?
A. μ
B. 1/μ
C. √μ
D. μ2 - Plate towers are preferred to packed towers, when large temperature changes are involved, because of the reason that the____________________?
A. Packing may be crushed due to thermal expansion/contraction of the components of the
equipments
B. Pressure drop in the equipment will be very high
C. Viscosity variation of the fluids may cause channelling/flooding
D. None of these - ______________ column is preferred to be used, when a high liquid hold up is required in a reactor for gas-liquid reaction ?
A. Packed
B. Bubble
C. Spray
D. Tray - Solvent extraction is the terminology applied to the liquid-liquid extraction, which is preferred for the separation of the components of liquids, when____________________?
A. Extracting solvent is cheaply & abundantly available
B. One of the liquid components is heat sensitive
C. Viscosity of liquid components is very high
D. One of the liquid components has very high affinity towards the solvent - For a binary mixture with low relative volatility________________?
A. Use steam distillation
B. Use molecular distillation
C. Use high pressure distillation
D. An azeotrope may be formed during distillation - Use of natural draft cooling tower is practised, when the air has low ?
A. Humidity
B. Temperature
C. Both A. & B.
D. Neither A. nor B. - When the temperature and humidity of air is low, we usually use _______________ draft cooling tower?
A. Natural
B. Forced
C. Induced
D. None of these - For a binary mixture with low relative volatility, continuous rectification to get pure products will require_____________________?
A. Low reflux ratio
B. Less number of trays
C. Small cross-section column
D. High reflux ratio
