The following sequences of reactions are to occur in a

Question

Problem 1:

1. The following sequences of reactions are to occur in a constant density reactor. Which type of continues flow-reactor would be best to maximize the selectivity for product C?

a. A + B → C   r_c = k_I C_A^3/12C_B

A + B → D      r_D = k₂C_AC_B^3/2

b. For the set of reactions in part (a) k_I = 1.25 L/mol.min and k₂ = 0.53 L/mol.mn. If a feed of 2.4 mol/L of A and 1.2 mol/L of Bare fed to the selected reactor in (a)

i. What volume of rector is needed to achieve 45% conversion of A? The volumetric flow rate v₀ is 10 L/min.

ii. Plot the concentration of A, B, C and D as a function of space time (r), what is the overall yield of C at 45% conversion of A?

Problem 2:

Determine the rate law and rate law parameters of the reaction 2H₂ + 2NO → N₂ + 2H₂O from the following constant-volume data were equimolar amount of hydrogen and nitrate oxide at a temperature of 300K:

Total pressure, mm Hg	200	240	280	320	360
Half-life, sec	265	186	115	104	67

   Use non-linear regression in Polymath.

Problem 3:

At a room temperature sucrose is hydrolyzed by the catalytic action of the enzyme sucrose as follows:

Sucrose → products

Starting with a sucrose concentration CSo = 1.0 mol/liter and an enzyme concentration CE0 = 0.01 mol/liter, the following kinetic data are obtained in a batch reactor (concentration calculated from optical rotation measurements):

CS. Mol/liter	0.84	0.68	0.53	0.38	0.27	0.16	0.09	0.04	0.018	0.006	0.0025
T, hr	1	2	3	4	5	6	7	8	9	10	11

a. Fit the data to the Michaelis-Menten kinetics reaction rate equation.

Determine Km and µmix

b. Find the time needed for substrate (sucrose) concentration to drop to 0.1 mol/liter.

Answer 1

Consider the case situation illustrated below and on the basis of the facts and figures, respond to the following: 1) The given sequences of reactions are to take place in a constant density reactor. Which kind of continues flow-reactor would be best to maximize the selectivity for product C? i) A + B ? C rc = kI CA3/12CB A + B ? D rD = k2CACB3/2 ii) For the set of reactions in part (i) kI = 1.25 L/mol.min and k2 = 0.53 L/mol.mn. If a feed of 2.4 mol/L of A and 1.2 mol/L of Bare fed to the chosen reactor in (i) (A) Illustrate what volume of rector is required to accomplish 45% conversion of A? The volumetric flow rate v0 is 10 L/min. (B) Plot concentration of A, B, C and D as a function of space time (r), determine the overall outcome of C at 45% conversion of A?