Process Dynamics And Control, 4e
16th Edition
ISBN: 9781119385561
Author: Seborg, Dale E.
Publisher: WILEY
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Question
Chapter 5, Problem 5.17E
Interpretation Introduction
(a)
Interpretation:
The transfer function model needs to be derived.
Concept introduction:
Steady-state gain is the steady-state value of a transfer function that has been attended by a given unit step in the input.
Interpretation Introduction
(b)
Interpretation:
Whether the transfer function is unique or not needs to be determined.
Concept introduction:
A transfer function is a simple way to represent a continuous, time-invariant system in terms of its input-output relationship. The transition method is accomplished by adding a Laplace transform to the differential equations representing a dynamic process, given no initial conditions.
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Do question 9 please! Question 7 Is just there for reference!!
7) You are tasked with separating two proteins by ion exchange chromatography on a 30 cm long
column with an inner diameter of 2 cm. The resin has a diameter of 100 μm and a void fraction
of 0.3, and your mobile phase flows through the column at a rate of Q = 5 cm³/min. The Van
Deemter coefficients A, B, and C have been determined to be 0.0228 cm, 0.0036 cm²/min, and
0.00053 min, respectively, for both proteins. Protein A elutes from the column with an average
retention time of 27 min and standard deviation of 0.8 min. Protein B elutes from the column.
with an average retention time of 33.8 min and standard deviation of 1.0.
a) How many theoretical plates does the column contain?
b) What flow rate (Q) will give you the maximum resolution?
c) What is the minimum height of a theoretical plate for the system?
4) A fixed bed adsorption unit contains rigid (incompressible) silica particles with a diameter of
120 um and porosity of 0.3. The resin bed is 200 cm long and has a diameter of 15 cm. A protein
solution is pumped into the column at a rate of 50 L/min, and the mobile phase has a viscosity of
1.2 CP.
a) What is the pressure drop for this system (in bar)?
b) What would be the pressure drop if the particle diameter were decreased to 30 μm?
Chapter 5 Solutions
Process Dynamics And Control, 4e
Ch. 5 - Prob. 5.1ECh. 5 - Prob. 5.2ECh. 5 - Prob. 5.3ECh. 5 - Prob. 5.4ECh. 5 - Prob. 5.5ECh. 5 - Prob. 5.6ECh. 5 - Appelpolscher has just left a meeting with Stella...Ch. 5 - Prob. 5.8ECh. 5 - Prob. 5.9ECh. 5 - Prob. 5.10E
Ch. 5 - Prob. 5.11ECh. 5 - Prob. 5.12ECh. 5 - Prob. 5.13ECh. 5 - Prob. 5.14ECh. 5 - Prob. 5.15ECh. 5 - Prob. 5.16ECh. 5 - Prob. 5.17ECh. 5 - Prob. 5.18ECh. 5 - Prob. 5.19ECh. 5 - Prob. 5.20ECh. 5 - Prob. 5.21ECh. 5 - Prob. 5.22ECh. 5 - Prob. 5.23ECh. 5 - Prob. 5.24ECh. 5 - Prob. 5.25ECh. 5 - Prob. 5.26ECh. 5 - Prob. 5.28ECh. 5 - Prob. 5.29ECh. 5 - Prob. 5.30E
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