ELEM.PRIN.OF CHEMICAL PROC.-W/ACCESS
4th Edition
ISBN: 9781119330745
Author: FELDER
Publisher: WILEY
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Question
Chapter 5, Problem 5.92P
Interpretation Introduction
(a)
Interpretation:
The reason as to why the tank gets purged is to be stated.
Concept introduction:
Combustion is the process of burning of chemical substances. The combustion reactions are exothermic reactions that usually occur in the presence of oxygen. Consequently, the large amount of energy is released during the process.
Interpretation Introduction
(b)
Interpretation:
The gauge pressure to which the tank must be charged if the purge is to be done in one charge-vent cycle is to be calculated. The mass of nitrogen used during the process is to be calculated.
Concept introduction:
An ideal gas equation is derived from the combination of Charles’s law, Boyle’s
The general expression for an ideal gas is shown below.
The expression exhibits that an
The gauge pressure to which the tank must be charged is calculated by the formula,
Interpretation Introduction
(c)
Interpretation:
The number of charge-vent cycles required for the process is to be calculated. The total mass of nitrogen used is to be calculated.
Concept introduction:
An ideal gas equation is derived from the combination of Charles’s law, Boyle’s law and Avogadro law.
The general expression for an ideal gas is shown below.
The expression exhibits that an ideal gas law relies on the temperature, pressure, volume and moles of gas.
Interpretation Introduction
(d)
Interpretation:
The explanation corresponding to the given statement that multiple cycles at a lower gas pressure are preferable to a single cycle is to be stated. The probable disadvantage of multiple cycles is to be stated.
Concept introduction:
An ideal gas equation is derived from the combination of Charles’s law, Boyle’s law and Avogadro law.
The general expression for an ideal gas is shown below.
The expression exhibits that the ideal gas law relies on the temperature, pressure, volume and moles of gas.
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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
ELEM.PRIN.OF CHEMICAL PROC.-W/ACCESS
Ch. 5 - A liquid mixture containing 40.0 wt% n-octane and...Ch. 5 - Prob. 5.2PCh. 5 - Prob. 5.3PCh. 5 - Prob. 5.4PCh. 5 - Prob. 5.5PCh. 5 - Prob. 5.6PCh. 5 - Prob. 5.7PCh. 5 - Prob. 5.8PCh. 5 - Prob. 5.9PCh. 5 - Prob. 5.10P
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