In distillation columns, the number of bubble caps per tray primarily depends upon the

Related MCQs

• Flooding in a vapor-liquid contacting equipment occurs in a tray, when the pressure drop through a tray is __________ the liquid head available in the downcomer.
• Tray spacing in a distillation column of dia 10-12 ft. used in petroleum refinery may be around __________ inches.
• With decrease in the throughput (compared with the design capacity) for a bubble cap distillation column, its efficiency
• Polar organic compounds are normally used as separating agents for the azeotropic and extractive distillation. Which of the following is the most important factor to be considered for the choice of the separating agent for extractive distillation?
• If the amount of the steam used in steam distillation is increased, the temperature of distillation
• Inside the distillation columns, the
• To get high tray efficiency
• An aqueous solution of methanol is to be distilled in a tray column. High pressure steam is available as a source of heat. For a given reflux ratio and overhead composition, two options are being explored; (i) a reboiler is used and (ii) no reboiler is used but steam is fed directly to the bottom of the column. As compared to option (i), in option (ii)
• Batch tray dryers suffers from the disadvantage of
• The interfacial area per unit volume of dispersion, in a gas-liquid contactor, for fractional hold up of gas = 0.1 and gas bubble diameter = 0.5 mm is given by (in m2 /m3 )