The bromination of a hydrated amine complex in aqueous system was studied. The reaction is: Complex + Br2 (Complex-Br) + Br + H* The initial bromine concentration was 72.6 micromoles m3, while the initial complex concentration was 1.49 moles m3. The reaction is irreversible under these conditions. The following data were reported from the study. Number Br2 concentration in solution (micromole m3) Time, t (seconds) 1 72.6 432 684 63.6 58.9 3 4 936 55.3 1188 51.6 1422 48.1 7 1632 45.2 8 2058 2442 38.8 9 35.1 (a) In this case, what would be the limiting reactant? Explain your answer (b) Suggest a rate equation for the reaction studied. Give clear reasoning for your assumptions. (c) Using the data above, calculate the reaction rate constant. Clearly show the steps for your data analysis method. (d) It is wished to process a reaction mixture with a similar composition as stated at the beginning of this problem. The flow rate of the aqueous bromine – hydrated amine complex is 1000 L hr'. What would be the volume of a PFR needed to reduce the Br2 content by 99%? If you are unable to find a value of rate constant in (c) you may use a value of 1.5x103 s1.
The bromination of a hydrated amine complex in aqueous system was studied. The reaction is: Complex + Br2 (Complex-Br) + Br + H* The initial bromine concentration was 72.6 micromoles m3, while the initial complex concentration was 1.49 moles m3. The reaction is irreversible under these conditions. The following data were reported from the study. Number Br2 concentration in solution (micromole m3) Time, t (seconds) 1 72.6 432 684 63.6 58.9 3 4 936 55.3 1188 51.6 1422 48.1 7 1632 45.2 8 2058 2442 38.8 9 35.1 (a) In this case, what would be the limiting reactant? Explain your answer (b) Suggest a rate equation for the reaction studied. Give clear reasoning for your assumptions. (c) Using the data above, calculate the reaction rate constant. Clearly show the steps for your data analysis method. (d) It is wished to process a reaction mixture with a similar composition as stated at the beginning of this problem. The flow rate of the aqueous bromine – hydrated amine complex is 1000 L hr'. What would be the volume of a PFR needed to reduce the Br2 content by 99%? If you are unable to find a value of rate constant in (c) you may use a value of 1.5x103 s1.
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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Please solve part d only
Transcribed Image Text:The bromination of a hydrated amine complex in aqueous system was studied.
The reaction is:
Complex + Br2
(Complex-Br) + Br
+ H*
The initial bromine concentration was 72.6 micromoles m3, while the initial
complex concentration was 1.49 moles m3. The reaction is irreversible under
these conditions.
The following data were reported from the study.
Time, t
(seconds)
Number
Br2 concentration in
solution (micromole m3)
1
72.6
2
432
63.6
3
684
58.9
4
936
55.3
1188
1422
51.6
6
48.1
7
1632
45.2
8
2058
38.8
2442
35.1
(a) In this case, what would be the limiting reactant? Explain your answer
(b) Suggest a rate equation for the reaction studied. Give clear reasoning for
your assumptions.
(c) Using the data above, calculate the reaction rate constant. Clearly show
the steps for your data analysis method.
(d) It is wished to process a reaction mixture with a similar composition as
stated at the beginning of this problem. The flow rate of the aqueous
bromine – hydrated amine complex is 1000 L hr'. What would be the
volume of a PFR needed to reduce the Br2 content by 99%?
If you are unable to find a value of rate constant in (c) you may use a
value of 1.5x10-3 s-1.
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