Consider the following chemical mixing example Fig. below. Two process streams are mixed to produce one of the feeds for our chemical reactor. After mixing, the blended stream is fed to a heating vessel before being sent to the reactor. Stream 1 C₁=1 g/L V₁=10 L/min T₁=25°C Mixing tee Stream 2 C₁=4 g/L V₂=20 L/min T₁-55°C Stream 3 Ca=3 g/L V₁=30 L/min T₁=?°C V=150 L poooo Heater C₂ T-80°C To reactor The process is running along at steady state. The concentration of A in stream 1 is 1 g/L and in stream 2 is 4 g/L. At 3:00 P.M. the shift changes at the plant. The new operator on our unit misreads the flowmeters for the process and switches the flow rates of the two streams. Stream 1 is switched to 20 L/min, and stream 2 is switched to 10 L/min. At 3:30 P.M. the shift supervisor hurries to the control room to determine the source of the problem now being experiencing with the reactor. 1. What was the net result of the operator's error on the concentration feed to the reactor? [1. Mathematical and scientific terms, 2. Theory in Engineering problems] 2. Given that the residence time of the heating vessel (Volume of tank/ Outlet flowrate) is 5 min. Predict the behaviour of this part of the process since the shift and the unfortunate error by the operator [1. Mathematical methods, 2. Calculations A] 3. Graphically illustrate the outlet concentration from reactor as a function of time [Statistical analysis] 4. Determine the steady state heat input required from the heater to the heating vessel [Calculations B] 5. Determine the transfer function of the reactor tank system that relates the output to the input after the error had occurred. Given that a reversible reaction occurs: Mathematical methods, 2. [1. Calculations]
Consider the following chemical mixing example Fig. below. Two process streams are mixed to produce one of the feeds for our chemical reactor. After mixing, the blended stream is fed to a heating vessel before being sent to the reactor. Stream 1 C₁=1 g/L V₁=10 L/min T₁=25°C Mixing tee Stream 2 C₁=4 g/L V₂=20 L/min T₁-55°C Stream 3 Ca=3 g/L V₁=30 L/min T₁=?°C V=150 L poooo Heater C₂ T-80°C To reactor The process is running along at steady state. The concentration of A in stream 1 is 1 g/L and in stream 2 is 4 g/L. At 3:00 P.M. the shift changes at the plant. The new operator on our unit misreads the flowmeters for the process and switches the flow rates of the two streams. Stream 1 is switched to 20 L/min, and stream 2 is switched to 10 L/min. At 3:30 P.M. the shift supervisor hurries to the control room to determine the source of the problem now being experiencing with the reactor. 1. What was the net result of the operator's error on the concentration feed to the reactor? [1. Mathematical and scientific terms, 2. Theory in Engineering problems] 2. Given that the residence time of the heating vessel (Volume of tank/ Outlet flowrate) is 5 min. Predict the behaviour of this part of the process since the shift and the unfortunate error by the operator [1. Mathematical methods, 2. Calculations A] 3. Graphically illustrate the outlet concentration from reactor as a function of time [Statistical analysis] 4. Determine the steady state heat input required from the heater to the heating vessel [Calculations B] 5. Determine the transfer function of the reactor tank system that relates the output to the input after the error had occurred. Given that a reversible reaction occurs: Mathematical methods, 2. [1. Calculations]
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
Related questions
Question
![Question I
Consider the following chemical mixing example Fig.
below. Two process streams are mixed to produce one
of the feeds for our chemical reactor. After mixing, the
blended stream is fed to a heating vessel before being
sent to the reactor.
Stream 3
C₁3=3 g/L
V₁=30 L/min
T₁=?°C
Stream 1
Mixing tee
Cal=1 g/L
V₁=10 L/min
T₁=25°C
C₂
T-80°C
To reactor
Stream 2
C₂-4 g/L
V₂=20 L/min
T-55°C
∞
ooooa
Heater
The process is running along at steady state. The
concentration of A in stream 1 is 1 g/L and in stream 2 is
4 g/L. At 3:00 P.M. the shift changes at the plant. The
new operator on our unit misreads the flowmeters for
the process and switches the flow rates of the two
streams. Stream 1 is switched to 20 L/min, and stream 2
is switched to 10 L/min. At 3:30 P.M. the shift supervisor
hurries to the control room to determine the source of
the problem now being experiencing with the reactor.
1. What was the net result of the operator's error on
the concentration feed to the reactor? [1.
Mathematical and scientific terms, 2. Theory in
Engineering problems]
2. Given that the residence time of the heating vessel
(Volume of tank/ Outlet flowrate) is 5 min. Predict
the behaviour of this part of the process since the
shift and the unfortunate error by the operator [1.
Mathematical methods, 2. Calculations A]
3. Graphically illustrate the outlet concentration from
reactor as a function of time [Statistical analysis]
4. Determine the steady state heat input required from
the heater to the heating vessel [Calculations B]
5. Determine the transfer function of the reactor tank
system that relates the output to the input after the
error had occurred. Given that a reversible reaction
occurs:
Mathematical methods, 2.
[1.
Calculations]
V=150 L](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1e2da064-bbde-404e-a198-e0102fd4e690%2F16ab02ce-7c7f-4f02-81ea-bba8d9b9392b%2Ffg8h3mp_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Question I
Consider the following chemical mixing example Fig.
below. Two process streams are mixed to produce one
of the feeds for our chemical reactor. After mixing, the
blended stream is fed to a heating vessel before being
sent to the reactor.
Stream 3
C₁3=3 g/L
V₁=30 L/min
T₁=?°C
Stream 1
Mixing tee
Cal=1 g/L
V₁=10 L/min
T₁=25°C
C₂
T-80°C
To reactor
Stream 2
C₂-4 g/L
V₂=20 L/min
T-55°C
∞
ooooa
Heater
The process is running along at steady state. The
concentration of A in stream 1 is 1 g/L and in stream 2 is
4 g/L. At 3:00 P.M. the shift changes at the plant. The
new operator on our unit misreads the flowmeters for
the process and switches the flow rates of the two
streams. Stream 1 is switched to 20 L/min, and stream 2
is switched to 10 L/min. At 3:30 P.M. the shift supervisor
hurries to the control room to determine the source of
the problem now being experiencing with the reactor.
1. What was the net result of the operator's error on
the concentration feed to the reactor? [1.
Mathematical and scientific terms, 2. Theory in
Engineering problems]
2. Given that the residence time of the heating vessel
(Volume of tank/ Outlet flowrate) is 5 min. Predict
the behaviour of this part of the process since the
shift and the unfortunate error by the operator [1.
Mathematical methods, 2. Calculations A]
3. Graphically illustrate the outlet concentration from
reactor as a function of time [Statistical analysis]
4. Determine the steady state heat input required from
the heater to the heating vessel [Calculations B]
5. Determine the transfer function of the reactor tank
system that relates the output to the input after the
error had occurred. Given that a reversible reaction
occurs:
Mathematical methods, 2.
[1.
Calculations]
V=150 L
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