Maximum allowable vapour velocity in a bubble cap tower is determined by the

Process Equipment and Plant Design
Maximum allowable vapour velocity in a bubble cap tower is determined by the

None of these

Entrainment considerations

Diameter of the column

Vapour density

None of these

Entrainment considerations

Diameter of the column

Vapour density

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Process Equipment and Plant Design
Accidents in chemical plants are mostly due to

Faulty operating procedures

Inadequate equipment design

Improper layout of the equipments

Failure of equipments

Faulty operating procedures

Inadequate equipment design

Improper layout of the equipments

Failure of equipments

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Process Equipment and Plant Design
Which of the following is not a valid assumption in continuous binary distillation for calculating the number of equilibrium stages by Mc-Cabe-Thiele's method?

Heat of mixing of normal liquid is assumed to be zero

Sensible heat changes for vapour & liquid are negligibly small

Molar latent heat of the two components are equal

Reflux is not a saturated liquid

Heat of mixing of normal liquid is assumed to be zero

Sensible heat changes for vapour & liquid are negligibly small

Molar latent heat of the two components are equal

Reflux is not a saturated liquid

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Process Equipment and Plant Design
Pick out the wrong statement pertaining to the design of the bubble cap tray of a distillation column to give stable operation and even vapour distribution.

The pressure drop due to the caps & slots and the static submergence should be as high as practicable for reasonable operation

The dimensionless ratio of liquid gradient to pressure drop head caused by the bubble cap assembly should be less than 0.4

Tendency towards stable operation is increased by increasing the skirt clearance of the caps, lowering the rate of liquid flow per unit plate width or increasing the spacing between the caps

None of these

The pressure drop due to the caps & slots and the static submergence should be as high as practicable for reasonable operation

The dimensionless ratio of liquid gradient to pressure drop head caused by the bubble cap assembly should be less than 0.4

Tendency towards stable operation is increased by increasing the skirt clearance of the caps, lowering the rate of liquid flow per unit plate width or increasing the spacing between the caps

None of these

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Process Equipment and Plant Design
In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.

Less than

One-fourth of

2.5 times

1.25-1.50 times

Less than

One-fourth of

2.5 times

1.25-1.50 times

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Process Equipment and Plant Design
Smoker's equation for the calculation of number of equilibrium stages in a continuous binary distillation column is used, when the

Relative volatility is close to one (e.g., separation of close boiling isomers)

Number of equilibrium stages required is likely to be very small

Number of equilibrium stages in only stripping section is to be calculated

Feed is not at its bubble point

Relative volatility is close to one (e.g., separation of close boiling isomers)

Number of equilibrium stages required is likely to be very small

Number of equilibrium stages in only stripping section is to be calculated

Feed is not at its bubble point

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Process Equipment and Plant Design

Process Equipment and Plant Design Maximum allowable vapour velocity in a bubble cap tower is determined by the

Process Equipment and Plant Design Accidents in chemical plants are mostly due to

Process Equipment and Plant Design Which of the following is not a valid assumption in continuous binary distillation for calculating the number of equilibrium stages by Mc-Cabe-Thiele's method?

Process Equipment and Plant Design Pick out the wrong statement pertaining to the design of the bubble cap tray of a distillation column to give stable operation and even vapour distribution.

Process Equipment and Plant Design In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.

Process Equipment and Plant Design Smoker's equation for the calculation of number of equilibrium stages in a continuous binary distillation column is used, when the

Process Equipment and Plant Design
Maximum allowable vapour velocity in a bubble cap tower is determined by the

Process Equipment and Plant Design
Accidents in chemical plants are mostly due to

Process Equipment and Plant Design
Which of the following is not a valid assumption in continuous binary distillation for calculating the number of equilibrium stages by Mc-Cabe-Thiele's method?

Process Equipment and Plant Design
Pick out the wrong statement pertaining to the design of the bubble cap tray of a distillation column to give stable operation and even vapour distribution.

Process Equipment and Plant Design
In most of the shell and tube heat exchangers, the tube pitch is generally __________ the tube diameter.

Process Equipment and Plant Design
Smoker's equation for the calculation of number of equilibrium stages in a continuous binary distillation column is used, when the