What is the slope of the operating line in the rectifying section of a distillation coloumn?

Process Equipment and Plant Design
What is the slope of the operating line in the rectifying section of a distillation coloumn?

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Process Equipment and Plant Design
With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the __________ decreases.

Running cost of steam for reboiler

Running cost of cooling water for condenser

Vapour & liquid load both

Fixed charges initially

Running cost of steam for reboiler

Running cost of cooling water for condenser

Vapour & liquid load both

Fixed charges initially

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Process Equipment and Plant Design
The necessary wall thickness for a metallic storage vessel is a function of the

Diameter of the vessel

Ultimate tensile strength (or yield point) of the material and operating temperature

Operating pressure and welding/joint efficiency

All of these

Diameter of the vessel

Ultimate tensile strength (or yield point) of the material and operating temperature

Operating pressure and welding/joint efficiency

All of these

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

Liquor is inside the tube while the steam is outside the tube

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

Area of central downtake is equal to 40 to 100% of total cross-sectional area of the surrounding tube

All of these

Liquor is inside the tube while the steam is outside the tube

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

Area of central downtake is equal to 40 to 100% of total cross-sectional area of the surrounding tube

All of these

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Process Equipment and Plant Design
Fouling factor must be included in the calculation of over all design heat transfer coefficient, when the liquid

Containing suspended solids flows at low velocity

Is highly viscous

Containing suspended solids flows at high velocity

Is of high specific gravity

Containing suspended solids flows at low velocity

Is highly viscous

Containing suspended solids flows at high velocity

Is of high specific gravity

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Process Equipment and Plant Design
Pick out the wrong statement about the design of a sieve plate column.

An increased weir height improves the tray efficiency at the cost of high plate pressure drop; optimum wear height being 40-90 mm for column pressure above atmospheric and 6-12 mm for vacuum columns

Width of the calming section provided at the inlet and outlet sides of the plate is 75 mm for column diameter below 1.5 metres and 100 mm for larger diameter columns

For segmental downcomers, the chord length is 60-80% of the column diameter. An initial value of downcomer area of 12% is taken in the design

Minimum recommended downcomer residence time for the disengagement of entrained vapour is the same for both foaming and non-foaming liquids, which is about 20 seconds

An increased weir height improves the tray efficiency at the cost of high plate pressure drop; optimum wear height being 40-90 mm for column pressure above atmospheric and 6-12 mm for vacuum columns

Width of the calming section provided at the inlet and outlet sides of the plate is 75 mm for column diameter below 1.5 metres and 100 mm for larger diameter columns

For segmental downcomers, the chord length is 60-80% of the column diameter. An initial value of downcomer area of 12% is taken in the design

Minimum recommended downcomer residence time for the disengagement of entrained vapour is the same for both foaming and non-foaming liquids, which is about 20 seconds

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Process Equipment and Plant Design

Process Equipment and Plant Design What is the slope of the operating line in the rectifying section of a distillation coloumn?

Process Equipment and Plant Design With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the __________ decreases.

Process Equipment and Plant Design The necessary wall thickness for a metallic storage vessel is a function of the

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

Process Equipment and Plant Design Fouling factor must be included in the calculation of over all design heat transfer coefficient, when the liquid

Process Equipment and Plant Design Pick out the wrong statement about the design of a sieve plate column.

Process Equipment and Plant Design
What is the slope of the operating line in the rectifying section of a distillation coloumn?

Process Equipment and Plant Design
With increase in the reflux ratio for a fixed production from a continuous binary distillation column, the __________ decreases.

Process Equipment and Plant Design
The necessary wall thickness for a metallic storage vessel is a function of the

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

Process Equipment and Plant Design
Fouling factor must be included in the calculation of over all design heat transfer coefficient, when the liquid

Process Equipment and Plant Design
Pick out the wrong statement about the design of a sieve plate column.