Homework Help is Here – Start Your Trial Now!
Engineering
Chemical Engineering
A process using two distillation columns in series is used to separate a feed stream (flow rate of 500 kmol/hr) containing a molar composition of 10% n-propanol (NP), 15% isopropanol (IP), 35% ethanol (E), and 40% methanol (M). The term distillate is the vapor containing more volatile components that exit the top of the column and the term bottoms refers to the liquid exiting the bottom of the column. The distillate from the first column (C1) is 98% pure M with a 96% recovery of M; and the distillate from the second column (C2) is 92% pure E with a 95% recovery of E from the process feed. For these calculations, assume that the distillate from C1 contains no propanols, the distillate from C2 contains no NP, and the bottoms stream from C2 contains no M. Based on these facts, answer the following:   Compute the flow rates in kmol/hr of each component in each feed, distillate, and bottoms assuming negligible propanols in the distillate from columns C1 and C2. Draw a block flow diagram and include a materials balance table similar to the one presented in Table 1.5 (2nd and 3rd).

A process using two distillation columns in series is used to separate a feed stream (flow rate of 500 kmol/hr) containing a molar composition of 10% n-propanol (NP), 15% isopropanol (IP), 35% ethanol (E), and 40% methanol (M). The term distillate is the vapor containing more volatile components that exit the top of the column and the term bottoms refers to the liquid exiting the bottom of the column. The distillate from the first column (C1) is 98% pure M with a 96% recovery of M; and the distillate from the second column (C2) is 92% pure E with a 95% recovery of E from the process feed. For these calculations, assume that the distillate from C1 contains no propanols, the distillate from C2 contains no NP, and the bottoms stream from C2 contains no M. Based on these facts, answer the following:   Compute the flow rates in kmol/hr of each component in each feed, distillate, and bottoms assuming negligible propanols in the distillate from columns C1 and C2. Draw a block flow diagram and include a materials balance table similar to the one presented in Table 1.5 (2nd and 3rd).

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
See similar textbooks
icon
Related questions
Question

A process using two distillation columns in series is used to separate a feed stream (flow rate of 500 kmol/hr) containing a molar composition of 10% n-propanol (NP), 15% isopropanol (IP), 35% ethanol (E), and 40% methanol (M). The term distillate is the vapor containing more volatile components that exit the top of the column and the term bottoms refers to the liquid exiting the bottom of the column. The distillate from the first column (C1) is 98% pure M with a 96% recovery of M; and the distillate from the second column (C2) is 92% pure E with a 95% recovery of E from the process feed. For these calculations, assume that the distillate from C1 contains no propanols, the distillate from C2 contains no NP, and the bottoms stream from C2 contains no M. Based on these facts, answer the following:

 

  • Compute the flow rates in kmol/hr of each component in each feed, distillate, and bottoms assuming negligible propanols in the distillate from columns C1 and C2. Draw a block flow diagram and include a materials balance table similar to the one presented in Table 1.5 (2nd and 3rd).

 

  • Compute the mol% purity of the propanol mixture leaving bottoms from the column

 

  • If the ethanol recovery is fixed at 95%, what is the maximum mol% purity of the ethanol in the distillate from column C2?
  •  
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
Introduction to Chemical Engineering Thermodynami…
Introduction to Chemical Engineering Thermodynami…
Chemical Engineering
ISBN:
9781259696527
Author:
J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:
McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemical Engineering
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
Elements of Chemical Reaction Engineering (5th Ed…
Elements of Chemical Reaction Engineering (5th Ed…
Chemical Engineering
ISBN:
9780133887518
Author:
H. Scott Fogler
Publisher:
Prentice Hall
Process Dynamics and Control, 4e
Process Dynamics and Control, 4e
Chemical Engineering
ISBN:
9781119285915
Author:
Seborg
Publisher:
WILEY
Industrial Plastics: Theory and Applications
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:
9781285061238
Author:
Lokensgard, Erik
Publisher:
Delmar Cengage Learning
Unit Operations of Chemical Engineering
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:
9780072848236
Author:
Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:
McGraw-Hill Companies, The
SEE MORE TEXTBOOKS