Question 1

Vapor distillate returned to the tower is called:

Accepted Answer

A)  boil-up rate 
B)  reflux rate 
C)  total reflux 
D)  incomplete separation 
A)  boil-up rate 
B)  reflux rate 
C)  total reflux 
D)  incomplete separation

Question 2

Calculate the total vapor pressure exerted by the mixture: 25% hexane 20.6 psia @ 175F, 25% heptane 8.8 psia @ 175F, and 50% benzene 14.7 psia @ 176 F. Give answer in psia.

Accepted Answer

A)  14.7 psia 
B)  44.1 psia 
C)  22.05 psia 
D)  34.7 psig 
A)  14.7 psia 
B)  44.1 psia 
C)  22.05 psia 
D)  34.7 psig

Question 3

All of the following are principles of distillation except:

Accepted Answer

A)  heat increases vapor pressure 
B)  pressure increases boiling point 
C)  vacuum decreases boiling point 
D)  forms and breaks molecular bonds 
A)  heat increases vapor pressure 
B)  pressure increases boiling point 
C)  vacuum decreases boiling point 
D)  forms and breaks molecular bonds

Question 4

What is the overhead composition?

Accepted Answer

C-10 = 16%

Question 5

Liquid distillate returned to the tower is called:

Accepted Answer

A)  boil-up rate 
B)  reflux rate 
C)  total reflux 
D)  incomplete separation 
A)  boil-up rate 
B)  reflux rate 
C)  total reflux 
D)  incomplete separation

Question 6

-Refer to Bottom VLE graphic above. The initial bubble point temperature for a butane mole fraction of 40% is:_________________ .

Accepted Answer

Primary: reboiler TIC-2, Secon

Question 7

Tube shaped funnels that allow fluid transfer between plates in a tower:

Accepted Answer

A)  riser 
B)  bubble-cap 
C)  downcomer 
D)  sieve 
A)  riser 
B)  bubble-cap 
C)  downcomer 
D)  sieve

Vapor distillate returned to the tower is called:

Calculate the total vapor pressure exerted by the mixture: 25% hexane 20.6 psia @ 175F, 25% heptane 8.8 psia @ 175F, and 50% benzene 14.7 psia @ 176 F. Give answer in psia.

All of the following are principles of distillation except:

What is the overhead composition?

Liquid distillate returned to the tower is called:

$-Refer to Bottom VLE graphic above. The initial bubble point temperature for a butane mole fraction of 40% is:_ .$ -Refer to Bottom VLE graphic above. The initial bubble point temperature for a butane mole fraction of 40% is:_ .

Tube shaped funnels that allow fluid transfer between plates in a tower:

Introduction to Process Equipment

Valves

Piping and Vessels

Pumps

Compressors

Turbines and Motors

Heat Exchangers

Cooling Towers

Steam Generation- Boilers

Fired Heaters Furnaces

Instruments

Process Diagrams

Utility Systems

Reaction Systems

Extraction and Other Separation Systems

Plastics Systems

Filters

Exam 15: Distillation Systems

Vapor distillate returned to the tower is called:

Calculate the total vapor pressure exerted by the mixture: 25% hexane 20.6 psia @ 175F, 25% heptane 8.8 psia @ 175F, and 50% benzene 14.7 psia @ 176 F. Give answer in psia.

All of the following are principles of distillation except:

What is the overhead composition?

Liquid distillate returned to the tower is called:

-Refer to Bottom VLE graphic above. The initial bubble point temperature for a butane mole fraction of 40% is:_________________ .

Tube shaped funnels that allow fluid transfer between plates in a tower:

Introduction to Process Equipment

Valves

Piping and Vessels

Pumps

Compressors

Turbines and Motors

Heat Exchangers

Cooling Towers

Steam Generation- Boilers

Fired Heaters Furnaces

Instruments

Process Diagrams

Utility Systems

Reaction Systems

Extraction and Other Separation Systems

Plastics Systems

Filters

$-Refer to Bottom VLE graphic above. The initial bubble point temperature for a butane mole fraction of 40% is:_ .$ -Refer to Bottom VLE graphic above. The initial bubble point temperature for a butane mole fraction of 40% is:_ .