The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is

Related MCQs

• For a single component absorber, the operating line is straight only when plotted in term of __________ units.
• Acetone is to be removed from air in an isothermal dilute absorber using pure water as solvent. The incoming air contains 5 mole% of acetone (yin = 0.05). The design equation to be used for obtaining the number of trays (N) of the absorber is, N+2 = 6 log (yin/yout).For 98% recovery of acetone, the number of trays required is/are:
• The operating line for an absorber is curved, when plotted in terms of
• Which of the following quantities need not be fixed before starting the design of a cocurrent absorber?
• H2S is being absorbed in a gas absorber unit. The height of the transfer unit based on the overall mass transfer coefficient on the gas side is 0.4 m. The equilibrium data is given by, y = 1.5 x. The bulk concentration of H2S has to be reduced from 0.05 to 0.001 mole fraction in the gas side. The height of the tower (in metres) corresponding to an operating line given by, y = 5x + 0.001 is
• When both the fluids flow concurrently in an absorber, the slope of the operating line is
• If G = insoluble gas in gas stream and L = non-volatile solvent in liquid stream, then the slope of the operating line for the absorber is
• Absorption factor is defined as (where, S1 = slope of the operating line S2 = slope of the equilibrium curve)
• Experiments were conducted to determine the flux of a species A in a stagnant medium across a gas-liquid interface. The overall mass transfer co-efficient based on the liquid side for dilute systems for the above was estimated to be 4 × 10-3 kg mole/m2 .s. The equilibrium data for the system is given as y = 2x. The flux across the interface (in kg mole/m2 .s) for bulk concentrations of A in gas phase and liquid phase as y = 0.4 and x = 0.01 respectively is:
• In a binary distillation column, if the feed contains 40 mole % vapour, the q line will have a slope of