Back-trapping in a distillation column

Related MCQs

• According to the Fenske equation, what will be the minimum number of plates required in a distillation column to separate an equimolar binary mixture of components A and B into an overhead fraction containing 99 mol% A and a bottom fraction containing 98 mol% B ? Assume that relative volatility (αAB = 2) does not change appreciably in the column.
• Packed column distillation is limited to the column __________ metres.
• A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state,
• 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
• Cox chart, which is useful in the design of distillation column particularly for petroleum hydrocarbons, is a plot of (where, P = vapor pressure, T = temperature).
• Plate efficiency in a distillation column is reduced due to the __________ of liquid.
• Minimum reflux ratio in a distillation column results in
• In a binary distillation column, if the feed contains 40 mole % vapour, the q line will have a slope of
• The operating cost of a distillation column at minimum reflux ratio is