Process Equipment and Plant Design
Which of the following is used to set the diameter of the distillation column?

Length of straight rectangular weir on cross-flow tray
Static submergence
Allowable vapour velocity
Number of theorectical plates

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Process Equipment and Plant Design
In a vertical short tube evaporator (Calendria type), the

All of these
Tube dia of 2.5-7.5 cms, tube length of 75-200 cms and cylinderical drum dia of 1-6 metres are normally used
Liquor is inside the tube while the steam is outside the tube
Area of central downtake is equal to 40 to 100% of total cross-sectional area of the surrounding tube

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