WorksheetsDistillation_02
Total questions: 10
Worksheet time: 16mins
The section above the feed tray in a fractionator is known as ______________
Enriching section
Feed section
Rectifying section
All the mentioned
The top of the fractionators/ fractionation column have ______ temperature.
No
Low
High
None of the mentioned
The bottom of the fractionators/ fractionation colums have ______ temperature.
No
Low
High
None of the mentioned
The section below the feed tray in a fractionator/ fractionation column is known as ______________
Enriching section
Feed section
Rectifying section
Stripping section
The use of vapour produced from the reboiler is
To strip out more volatile component from liquid
To increase the temperature of the fractionator bottom
To strip out low volatile component from the liquid
None of the mentioned
Calculate the reflux ratio if the feed (F), the bottoms (B) and reflux flowrate (Ln) is 100, 40 and 50 mole/hr, respectively.
1.25
0.83
1.5
1
What is the q value if the feed enters the distillation column at its dew point?
Infinity
0
1
Between 0 and 1
After leaving the condenser if the liquid is at bubble point then which of the following is correct?
Same concentration of distillate and reflux
Different concentration of distillate and reflux
No latent heat is removed
None of the mentioned
Non-equimolal flow rates are maintained in the fractionator obeying McCabe-Thiele method.
True
False
What is the representation of point P in this enriching section.
Xd/R-1
Xd/R+1
R/Xd-1
R/Xd+1
