Q. Large number of flash distillation equals a differential distillation.

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Q. The column used for differential distillation is_______________

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Q. Simple distillation is a___________ process.

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Q. The initial portion of the distillate will be a low volatile component.

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Q. After the separation by differential distillation, the high volatile and low volatile components are stored in _____________

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Q. For a ternary mixture, the number of cuts required is_________

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Q. The differential distillation in order to maintain the equilibrium the process should be slow.

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Q. Pre-cooling is required before passing the vapour to the condenser in a still.

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Q. The equation applicable for batch distillation is _________

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Q. Estimate the feed rate, if the composition of the more volatile component in the feed is 50% and the residue is 10% and the equilibrium relation is given by y*= 1.975x. Also, the rate of residue is 60 mol/hr.

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Q. Find the rate of distillate, if the composition of the more volatile component in the feed is 50% and the residue is 10% and the equilibrium relation is given by y*= 1.975x. Also the rate of residue is 60 mol/hr.

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Q. Rectifying continuously is known as _____________

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Q. The top of the fractionators has ______ temperature.

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Q. The section above the feed tray in a fractionator is known as ______________

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Q. The bottom of the fractionators has a ______ temperature.

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Q. The section below the feed tray in a fractionator is known as ______________

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Q. The use of vapour produced from the reboiler is

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Q. The light key components are__________

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Q. Find the reflux ratio if the feed , residue and reflux rate is 100, 40 and 50 mole/hr.

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Q. The residue has a more heavy key component.

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