Tower diameter may be decreased by

Related MCQs

• In a moderately sized packed absorption tower, channelling (which is most severe with stacked packings) can be minimised by taking the ratio of tower diameter to packing diameter
• For the same system, if the same liquid used in an absorber is decreased, the tower height will
• A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height.
• Pressure drop through plate tower as compared to that through packed tower, for the same duty will be
• At the same gas flow rate, the pressure drop in a packed tower being irrigated with liquid __________ that in dry packed tower.
• A packed tower compared to a plate tower for a particular mass transfer operation
• Diameter of raschig rings used in packed tower in industry is normally around __________ inches.
• If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent.
• 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
• For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG: mass transfer co-efficient, moles/m2, a: interfacial area per unit volume of tower)