Process Equipment and Plant Design MCQs

In a continuous distillation column, the optimum reflux ratio ranges from __________ times the minimum reflux ratio.

In a vertical short tube evaporator (Calendria type), the

In which of the following evaporators, steam is fed inside the tube while the liquor is outside the tube?

In perforated plate towers, the

It is not desirable to design a heat exchanger for LMTD correction factor, F_T, of less than

For given number of passes, pitch & tube diameter, the maximum number of tubes that can be accommodated in a shell of tripled inside diameter will be __________ times.

An underdesigned steam trap will

Overall distillation column efficiency for most of the refinery columns can be given by (for $$\mu $$ = 0.07 - 1.4 cp and relative volatility < 4) (where η = overall column efficiency, % $$\mu $$ = molal average viscosity of feed at average column temperature and pressure, cp Δp = pressure drop per tray, psi)

Height equivalent to a theoretical plate (HETP) is the height of packing that will give the same separation as one theoretical plate in gas-liquid mass transfer operations like distillation, absorption/stripping and humidification/dehumidification. HETP which is experimentally determined, depends upon the