Asked Jan 29, 2019

A typical column is shown in figure together with the known information for each stream. Calculate the kilograms of distillate per kilogram of feed and per kilogram of waste.

85% EtOH
15% H20
35% EtOH
65% H2O
Distillation Column
5% EtOH
95% H20

Image Transcriptionclose

System ooundary-J/ ndenser Distillate 85% EtOH 15% H20 Feed 35% EtOH 65% H2O Distillation Column Waste 5% EtOH 95% H20


Expert Answer

Step 1

Let the basis of the process be taken as 100 kg feed (F). Apply material balance on the overall process across the given system boundary. The total mass balance is given by equation (1) and the mass balance on ethanol (EtOH) is given by equation (2).

Step 2

Solve equation (1) and (2) simultaneously to get the value of D and W as:

Step 3

Now, calculate kilograms of distillate (...


Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in


Chemical Engineering

Chemical Engineering

Related Chemical Engineering Q&A

Find answers to questions asked by student like you

Show more Q&A add

Q: 4.2 Consider the following transfer function: Y(s) 3e- U(s) 1Os +1 (a) What is the steady-state gain...

A: Note: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question...


Q: 2. A jacketed vessel is used to cool a process stream as shown in Fig. E2.The (i) The volume of liqu...

A: Click to see the answer


Q: A mixture of ideal gases has the following composition by mass :Oxygen(60%), Carbon dioxide(20%),Nit...

A: We can calculate the Characteristic gas constant for mixture of gasses by using the following formul...


Q: H3CA is a vitally important intermediate in the metabolism of carbohydrates. The compound is widely...

A: Part (a):It is given that 21.35 mL of 0.678 M NaOH(aq) requires to fully neutralize 0.927 g of H3CAA...


Q: A new engineering graduate was putin charge of a reactor. The engineer quickly learned that the proc...

A: Part (b)The Schematic diagram of the given process is drawn below. The basis of the calculation is t...


Q: The oxidative coupling of methane to form ethylene (2 CH4 + O2 -> C2H4 + 2 H2O) is known as the “...

A: Dear student, we answer three parts in a question. So, we are providing answers to the first three p...


Q: (a) If 300 lb of air and 24.0 lb of carbon are fed to a reactor at 600 ° and after complete combusti...

A: Part (a)Moles of Carbon fed to the reactor is written as equation (1).Moles of Air fed to the reacto...


Q: 2. The absorption tower is often used for absorbing gases. The gas is introduced at the bottom of th...

A: Part (a)Let,The mass of inlet gas be m1 kg.The mass of outlet gas be m2 kg.The mass of inlet water(a...


Q: Cyclohexanol is a highly desired chemical precursor for the production of nylon (billions of kilogra...

A: Part (a):Since all the derivatives are zero and y=u=0 at the nominal steady state, Hence taking lapl...