Desirable value of absorption factor in an absorber is

Related MCQs

• 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:
• Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be
• In a packed absorption tower, if the equilibrium and operating lines are both straight lines, then the ratio, HETP/HTUOG __________ the absorption factor.
• In a gas-liquid absorption column, for obtaining the maximum absorption efficiency
• Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in
• Absorption accompanied with chemical reaction is exemplified by the absorption of
• In the absorption of ammonia in water, the main resistance to absorption is by the __________ phase.
• 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
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