It is desired to separate benzene from a water-benzene mixture in a distillation column operating at...
It is desired to separate benzene from a water-benzene mixture in a distillation column operating at a constant pressure of 1 atm (760 mmHg).
- Determine the temperature range of the column operation.
- Draw the phase diagram of the mixture (versus x and y).
- Draw the y-x equilibrium curve of the most volatile component and the 45-degree line in the same figure.
Homework Answers
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It is desired to separate benzene from a water-benzene mixture
in a distillation column operating at...
A distillation column is fed with a liquid mixture of 25.0 mole % benzene, 30 %...
A
distillation column is fed with a liquid mixture of 25.0 mole %
benzene, 30 % toluene and 45 % xylene. The bottom product from the
distillation column contains 97 mole % xylene and no benzene. The
other stream (upper one) contains 29 % benzene and it is fed to a
second distillation column. The upper...
Problem 2. A distillation column is fed with a liquid mixture of 25.0 mole benzene, 30 toluene, and 45 xylene. The bottom product from...
Q3: The distillation column shown in the figure below is used to distill a binary mixture....
Q3: The distillation column shown in the figure below is used to distill a binary mixture. Symbols x, y, z denote mole fractions of the more volatile component, while B, D, R, and F represent molar flow rates. It is desired to control distillate composition y despite disturbances in feed flow rate F. All flow rates can be measured and manipulated with the exception of F, which can only be measured. A composition analyzer provides measurements of y. (a) Propose...
A distillation column is initially designed to separate a mixtureof toluene and xylene at around ambient...
A distillation column is initially designed to separate a
mixtureof toluene and xylene at around ambient temperature (say,
100 degree C) and pressure (say 1 barg). The column has20 stainless
steel valve trays and is 2 m in diameter and 14 m tall. Determine
the purchase cost and the bare module cost using CEPCI = 542.
3. (30 pts) A distillation tower is initially designed to separate a mixture of toluene and xylene. The stainless steel tower is 3 m...
The distillation column shown at the right is used to separate compound A from compound B...
The distillation column shown at the right is used to separate compound A from compound B in an adiabatic fashion. A liquid mixture of A and B is fed at a specified temperature into a distillation column (stream 1). At the top of the column, a vapor stream that is A-rich (stream 2) passes through a condenser that completely condenses the mixture. Half of this liquid leaves the condenser as the overhead product (stream 4), and half of the liquid...
2. (no calculations required) A mixture of n-butanol and water is being separated using two distillation...
2. (no calculations required) A mixture of n-butanol and water is being separated using two distillation columns coupled together by a liquid-liquid separator. Both columns have 30 trays and operate at 1 atm with the internal reflux ratio adjusted to four times the minimum Vapor-liquid- liquid equilibrium data for this system at 1 atm is provided below in the form of a T-x-y diagram. If the feed to the distillation towers is a saturated liquid that contains 65 mol% water,...
An equimolar liquid mixture of benzene and toluene is separated into two product streams by distillation....
An equimolar liquid mixture of benzene and toluene is separated into two product streams by distillation. A process flowchart and a somewhat oversimplified description of what happens in the process follow: Vapor-97% mole benzene A Reflux Overhead product Filmoi) 24 CONDENSER", mot Feed 100 mol 0.500 mol Bimal La DISTILLATION 0.500 mol/mol Bollup mol B[/mol) 1 Bottoms product REBOILER mol B/D/mol Inside the column a liquid stream flows downward and a vapor stream rises. At each point in the column...
Question 3 A saturated liquid mixture is fed to a continuous distillation column at 300 kmol/h. The specifications...
Question 3 A saturated liquid mixture is fed to a continuous distillation column at 300 kmol/h. The specifications of the operation of the column are provided in Table 2. The column operates at 800 kPa. Table 2: Feed, distillate and bottoms flowrates Component Feed (kmol/h) Bottoms (kmol/h) Distillate (kmol/h) methanol 95 ethanol 33 n-propanol (LK) 67 n-butanol (HK) 45 4 n-pentanol 60 Total 300 Additional information: a. n-propanol is the light key component (LK) and n-butanol is the heavy key...
9. A mixture (solution) of 3 different liquid compounds is formed. Each compound has the same...
9. A mixture (solution) of 3 different liquid compounds is formed. Each compound has the same condensed formula of C4H10O. Separate analyses of these compounds confirmed that none of the compounds has branching of C’s from the main chain of attached C atoms. Also one of the compounds experiences a weaker interparticle force as its dominant force than the other two. (a) Draw 3 possible preferred Lewis structures consistent with the above formula and information. It is desired to separate...
An absorption column operates at 1 atm to separate compound A from air using pure water...
An absorption column operates at 1 atm to separate compound A from air using pure water as solvent. If the concentration of A in the inlet air stream is 900 ppm and the Henry's law constant for A in water is 1000 atm/ppm: a) What is the equilibrium line equation? (** draw on chart and label) If the desired outlet air is to contain 200 ppm compound A: b) What is (L/V)min? (** draw on chart and label) c) If...
4.42. An equimolar liquid mixture of benzene and toluene is separated into two product streams by...
4.42. An equimolar liquid mixture of benzene and toluene is separated into two product streams by distillation. A process flowchart and a somewhat oversimplified description of what happens in the process follow: Vapor-97% mole benzene Overhead product Reflux n(mol) n1(mol) CONDENSER Feed 100 mol DISTILLATION COLUMN 0.500 mol B/mol 0.500 mol T/mol Boilup yBmol B(v)/mol] Bottoms product REBOILER *B[mol B(1)/mol] Inside the column a liquid stream flows downward and a vapor stream rises. At each point in the column some...
A
distillation column is fed with a liquid mixture of 25.0 mole %
benzene, 30 % toluene and 45 % xylene. The bottom product from the
distillation column contains 97 mole % xylene and no benzene. The
other stream (upper one) contains 29 % benzene and it is fed to a
second distillation column. The upper...
Problem 2. A distillation column is fed with a liquid mixture of 25.0 mole benzene, 30 toluene, and 45 xylene. The bottom product from...
Q3: The distillation column shown in the figure below is used to distill a binary mixture. Symbols x, y, z denote mole fractions of the more volatile component, while B, D, R, and F represent molar flow rates. It is desired to control distillate composition y despite disturbances in feed flow rate F. All flow rates can be measured and manipulated with the exception of F, which can only be measured. A composition analyzer provides measurements of y. (a) Propose...
A distillation column is initially designed to separate a
mixtureof toluene and xylene at around ambient temperature (say,
100 degree C) and pressure (say 1 barg). The column has20 stainless
steel valve trays and is 2 m in diameter and 14 m tall. Determine
the purchase cost and the bare module cost using CEPCI = 542.
3. (30 pts) A distillation tower is initially designed to separate a mixture of toluene and xylene. The stainless steel tower is 3 m...
The distillation column shown at the right is used to separate compound A from compound B in an adiabatic fashion. A liquid mixture of A and B is fed at a specified temperature into a distillation column (stream 1). At the top of the column, a vapor stream that is A-rich (stream 2) passes through a condenser that completely condenses the mixture. Half of this liquid leaves the condenser as the overhead product (stream 4), and half of the liquid...
2. (no calculations required) A mixture of n-butanol and water is being separated using two distillation columns coupled together by a liquid-liquid separator. Both columns have 30 trays and operate at 1 atm with the internal reflux ratio adjusted to four times the minimum Vapor-liquid- liquid equilibrium data for this system at 1 atm is provided below in the form of a T-x-y diagram. If the feed to the distillation towers is a saturated liquid that contains 65 mol% water,...
An equimolar liquid mixture of benzene and toluene is separated into two product streams by distillation. A process flowchart and a somewhat oversimplified description of what happens in the process follow: Vapor-97% mole benzene A Reflux Overhead product Filmoi) 24 CONDENSER", mot Feed 100 mol 0.500 mol Bimal La DISTILLATION 0.500 mol/mol Bollup mol B[/mol) 1 Bottoms product REBOILER mol B/D/mol Inside the column a liquid stream flows downward and a vapor stream rises. At each point in the column...
Question 3 A saturated liquid mixture is fed to a continuous distillation column at 300 kmol/h. The specifications of the operation of the column are provided in Table 2. The column operates at 800 kPa. Table 2: Feed, distillate and bottoms flowrates Component Feed (kmol/h) Bottoms (kmol/h) Distillate (kmol/h) methanol 95 ethanol 33 n-propanol (LK) 67 n-butanol (HK) 45 4 n-pentanol 60 Total 300 Additional information: a. n-propanol is the light key component (LK) and n-butanol is the heavy key...
An absorption column operates at 1 atm to separate compound A from air using pure water as solvent. If the concentration of A in the inlet air stream is 900 ppm and the Henry's law constant for A in water is 1000 atm/ppm: a) What is the equilibrium line equation? (** draw on chart and label) If the desired outlet air is to contain 200 ppm compound A: b) What is (L/V)min? (** draw on chart and label) c) If...
4.42. An equimolar liquid mixture of benzene and toluene is separated into two product streams by distillation. A process flowchart and a somewhat oversimplified description of what happens in the process follow: Vapor-97% mole benzene Overhead product Reflux n(mol) n1(mol) CONDENSER Feed 100 mol DISTILLATION COLUMN 0.500 mol B/mol 0.500 mol T/mol Boilup yBmol B(v)/mol] Bottoms product REBOILER *B[mol B(1)/mol] Inside the column a liquid stream flows downward and a vapor stream rises. At each point in the column some...
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