Mixture of acetic acid in water

Assignment Help Chemistry
Reference no: EM13962592

1.  An 11.5 wt% mixture of acetic acid in water is to be extracted with 1-butanol at 1 atm pressure and 26.7 oC. We desire outlet concentration of 0.5 wt% in the water and 9.6 wt% in the 1-butanol. Inlet butanol is pure. Find the number of equilibrium stages required and the ratio between the actual 1-butanol flow rate and the minimal 1-butanol flow rate using the McCabe-Thiele method. The equilibrium data for dilute extraction are usually represented as a distribution ratio, Kd,

Kd=y/x

in weight fractions or mole fractions. For very dilute systems, Kd will be constant. Values of Kd are tabulated in Perry and Green’ Chemical Engineering Handbook. For the current system at 26.7 oC, Kd=1.613, with x and y in weight fractions. 

2.  The 11.5 wt% aqueous solution of acetic acid processed in problem 1 is now treated in a three-stage cross-flow system. The same amount of solvent (pure 1-butanol) is to be used, but now it will be divided equally among the three stages. Operation is at 1 atm and 26.7 oC. Find the outlet concentration of all streams. 

3. A water solution containing 0.005 mole fraction benzoic acid is to be extracted using pure benzene as the solvent in a counter-current cascade of 20 actual stages, with an overall cascade/stage efficiency of 0.5. If the feed rate is 100 mol/hr and the solvent flow rate is 10 mol/hr, find the recovery efficiency of benzoic acid. Operation is isothermal at 6 oC, with the equilibrium equation given by: Y=0.0446X. 

4.A water solution containing X0 mole fraction benzoic acid is to be extracted using pure benzene as the solvent in a counter-current cascade of N equilibrium stages. The solute- free feed rate is Rs kmol/hr and the solvent flow rate is chosen as 1.2 times of the minimum flow rate, Es,min. Operation is isothermal, with the equilibrium equation given by: Y=mX, with m as a constant.

a.        Derive the following relationship for the minimum solvent flow rate:

Es,min  = Rs (1 - XN / X 0 ) / m

b.        Derive the following relationship for XN/X0

 

X    /  =1.2(1- X N  / X 0 ) -1N             0         [1.2(1- X/ X 0)]N +1 -1

Reference no: EM13962592

Questions Cloud

Linear programming model for alexis harrington : How much would the return for cattle have to increase in order for Alexis to invest only in cattle? Should all of Alexis's inheritance be invested according to the optimal solution?
What are the typical roles that team members need to assume : Describe the important issues that an organization must consider in developing successful teams. What are the typical roles that team members need to assume?
Find electric field at the center of this triangle : What will be the magnetic field at the center of the same triangle, when charges are moving along its sides with constant velocity v in clockwise direction and are exactly in the middle between two consequent corners?
What would you do if you were the trolley driver : What would you do if you were the trolley driver? Is the driver required, permitted, or forbidden from turning the trolley onto the other track? Why
Mixture of acetic acid in water : An 11.5 wt% mixture of acetic acid in water is to be extracted with 1-butanol at 1 atm pressure and 26.7 oC. We desire outlet concentration of 0.5 wt% in the water and 9.6 wt% in the 1-butanol. Inlet butanol is pure. Find the number of equilibrium st..
Using the section on managing customer expecting : Using the section on managing customer expecting, put yourself in the position of your professor, who must reduce the amount of "service" provided to the students in your class. give an example of each strategy in this context which of the strategies..
Determine the optimal product mix : Formulate a linear programming model to determine the optimal product mix that will maximize profit. Transform this model into standard form.
Interrelationship between revenue cycle and reimbursement : Analyze the interrelationship between the revenue cycle and reimbursement and assess its contributors. Think about questions such as how revenue is generated throughout the healthcare organization, which departments impact revenue as well as reimburs..
What do you think are the strongest arguments for abortion : After reviewing the readings for this topic, what do you think are the strongest arguments for and against the right to abortion? Explain. Do the same principles apply to euthanasia? Explain

Reviews

Write a Review

Chemistry Questions & Answers

  Steps in the mechanism for the following reaction

Show all the steps in the mechanism for the following reaction, When benzene is mixed with deuterated sulfuric acid, deuterium is slowly incorporated onto the ring. Show the mechanism for this reaction and explain how this relates the sulfonation of ..

  Prior to placing piece of metal into the graduated cylinder

This assignment inhibits chemistry Laboratory Questions.

  Write the structures of the saytzeff elimination

Write the structures of the saytzeff elimination

  Calculate ph - chemistry questions

Chemistry Questions on Calculate P H

  How many mols of hydrogen can produce

how many mols of H 2 can produce

  Analysis of corrosion mechanisms

Analysis of corrosion mechanisms and preventative measures

  Chemical and pharmaceutical science

Write an equation for the formation of an acetal from reaction of excess methanol with benzaldehyde in the presence of an acid catalyst.

  Calculate the approximate sulphur

Calculate the approximate SO 2 mass emission in lb/day.

  What is the structure - stereochemistry

What is the structure (including functional groups)? Stereochemistry (racemic or single enantiomer)?

  Design a qualitative analysis scheme

Design a qualitative analysis scheme

  What will be the resultant pressure

What will be the resultant pressure when the stopcock is opened?

  The 1h nmr spectrum

Integrals for some of the resonances in the 1H NMR spectrum are higher than they should be due to the shear number of hydrogens in this compound

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd