With lapse of time, the overhead composition of light component in case of batch distillation with constant reflux

Related MCQs

• In batch distillation with constant reflux, overhead product composition __________ with time.
• The reflux to a distillation column is 100 moles/hr, when the overhead product rate is 50 moles/hr. The reflux ratio is
• In continuous distillation, the internal reflux ratio (Ri) and the external reflux ratio (Re) are related as
• For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams
• 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)
• If xD = overhead product molal composition and RD = reflux ratio, then slope and intercept of the operating line for rectifying section are respectively
• In case of binary distillation, increasing the reflux ratio above optimum does not result in the increase of
• Pick out the correct relationship. (Where, Ri = internal reflux ratio Ro = external reflux ratio.)
• If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm.
• What is the reflux ratio at total reflux?