Within a process plant, a stream consisting of a mixture of components A and B (stream 1) is mixed with a stream of pure component B (Stream 2) in a process vessel called a mixer. Stream 1 is 50 mass% B. The outlet stream of the mixer (stream 3) is 40 mass% A. Stream 3 is fed into a separator which brings the mixture to equilibrium at 70°C and 1atm. Within the separator, the mixture forms two separate phases. The less dense phase exits the separator in stream 4 and the more dense phase exits the separator in stream 5. The processes operate at steady state, and no reactions happen in either process vessel. A process known compositions and flow rates labeled. A temperature- composition diagram for mixtures of A and B at 1 atm is agram is shown below, with available below. What is the mass fraction of B in stream 4? a. b. What is the total mass flow rate of the stream 4? What is the mass flow rate of B in stream 4? с. d. Write a mass balance equation for component B in the mixer e. What is the total mass of B entering the mixture every hour in Stream 2
Within a process plant, a stream consisting of a mixture of components A and B (stream 1) is mixed with a stream of pure component B (Stream 2) in a process vessel called a mixer. Stream 1 is 50 mass% B. The outlet stream of the mixer (stream 3) is 40 mass% A. Stream 3 is fed into a separator which brings the mixture to equilibrium at 70°C and 1atm. Within the separator, the mixture forms two separate phases. The less dense phase exits the separator in stream 4 and the more dense phase exits the separator in stream 5. The processes operate at steady state, and no reactions happen in either process vessel. A process known compositions and flow rates labeled. A temperature- composition diagram for mixtures of A and B at 1 atm is agram is shown below, with available below. What is the mass fraction of B in stream 4? a. b. What is the total mass flow rate of the stream 4? What is the mass flow rate of B in stream 4? с. d. Write a mass balance equation for component B in the mixer e. What is the total mass of B entering the mixture every hour in Stream 2
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
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Transcribed Image Text:Within a process plant, a stream consisting of a mixture of
components A and B (stream 1) is mixed with a stream of pure
component B (Stream 2) in a process vessel called a mixer.
Stream 1 is 50 mass% B. The outlet stream of the mixer
(stream 3) is 40 mass% A. Stream 3 is fed into a separator
which brings the mixture to equilibrium at 70°C and 1atm.
Within the separator, the mixture forms two separate phases.
The less dense phase exits the separator in stream 4 and the
more dense phase exits the separator in stream 5. The
processes operate at steady state, and no reactions happen in
either process vessel. A process diagram is shown below, with
known compositions and flow rates labeled. A temperature-
composition diagram for mixtures of A and B at 1 atm is
available below.
a. What is the mass fraction of B in stream 4?
b. What is the total mass flow rate of the stream 4?
c. What is the mass flow rate of B in stream 4?
d. Write a mass balance equation for component B in the
mixer
e. What is the total mass of B entering the mixture every
hour in Stream 2
Transcribed Image Text:Stream 4
Stream 1
8kg/h
50 mass% B
Stream 3
50 mass% A
SEPARATOR
WA3 = 0.4
70°C
WB3 = 0.6
1atm
MIXER
Stream 5
Stream 2
Pure B
flowchart
100
V
MA=10kg/kmol
MB=30kg/kmol
80
T(°C)
L+V
LB+V
60
LA
LB
La+LB
40
O 10 20 30 40 50 60 70 80 90 100
Mass Percent B
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