Consider the following system of a reactions in series and parallel reactions: A B C D A series of kinetic experiments o

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Consider The Following System Of A Reactions In Series And Parallel Reactions A B C D A Series Of Kinetic Experiments O 1 (184.61 KiB) Viewed 18 times

Consider the following system of a reactions in series and parallel reactions: A B C D A series of kinetic experiments of the above reaction system were carried out in a Continuous Stirred Tank Reactor (CSTR). In all experiments the feed stream solution contained only component A at concentration 1.000 mol dm 3. At each experiment the space time (mean residence time) changed by using different feed flow rates. At the outlet it was not possible to measure the concentration of the intermediate B. The measured outlet concentrations of the other reaction components (C₁,out) are shown in the following table: Experimental Run Space time [min] CA.out (mol dm-³) 0.703 CC,out (mol dm-³) CD, out (mol dm-³) 0.034 1 0.2 0.084 2 0.4 0.587 0.168 0.067 3 0.6 0.518 0.235 0.094 4 0.8 0.470 0.287 0.115 5 1.0 0.434 0.327 0.131 Table: Experimental Data a) For each experimental run, calculate the net formation rate (R) of each reaction component, A, B, C, D in mol dm³ min¹. Also, for each experimental run calculate the reaction rate (r) of each of the three reactions (1: A → B, 2: B → C 3: B→ D,). Derive equations for RA, RB, RC, RD and 1₁, 12, 13 and present the calculation results in the form of tables. [15] b) Assuming power law kinetics and performing linear regression, estimate the reaction orders and kinetic constants (reaction rates constants) of the three reactions. Tabulate your calculation results and present the regression plots. [15] c) Consider now the following reaction system, where reaction component C reacts to form D too: -B C How could the reaction rate of each of the four reactions be estimated from measurements of the concentrations of the four reaction components, A, B, C and D? [5] d) For the reaction system in question c, whose kinetics for all reactions is unknown, formulate the mole balance equations for each reaction component in the CSTR. Treat the kinetics of the four reactions as unknown. Write the equations for the net formation rates (R) of each reaction component, A, B, C and D, as function of the rates of the four reactions (r;). Use either one of the above systems of equations in this question d to explain your answer in question C. [15]