ELEMENTS OF CHEM. REACTION ENGR
5th Edition
ISBN: 9780135486498
Author: Fogler
Publisher: INTER PEAR
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Chapter 15, Problem 15.10P
Interpretation Introduction
Interpretation:
The length of the bed that is required to obtain the
Concept introduction:
The full form of PFR is Plug-Flow Reactor which consists of a cylindrical pipe and it is used for the gas-phase reactions. It is also known as tubular reactor.
The conversion, X can be defined as the moles of any species A that are reacted per mole of A fed in the reactor.
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Use the binary diagram, 45 line above and material balance to solve the
One thousand kg/h of a (50-50 wt%) acetone-in-water solution is to be extracted at 25C in a continuous,
countercurrent system with pure 1,1,2-trichloroethane to obtain a raffinate containing 10 wt% acetone. Using the
following equilibrium data, determine with an equilateral-triangle diagram:
a the minimum flow rate of solvent;
b. the number of stages required for a solvent rate equal to 1.5 times minimum, and composition of each
streamleaving each stage.
Repeat the calculation of (a) and (b) if the solvent used has purity 93wt% (4wr% acetone, 3wt% water
impurities)
acetone
0.6
water
0.13
1,1,2-trichloroethane
0.27
Raffinate. Weight
Fraction Acetone
Extract. Weight
Fraction Acetone
0.5
0.04
0.46
0.44
0.56
0.4
0.03
0.57
0.29
0.40
0.3
0.02
0.681
0.12
0.18
0.2
0.015
0.785
0.0
0.0
0.1
0.01
0.89
0.55
0.35
0.1
0.5
0.43
0.07
0.4
0.57
0.03
0.3
0.68
0.02
0.2
0.79
0.01
0.1
0.895
0.005
Material Science
Material Science
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