Maximize the selectivity for product

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Reference no: EM13864313

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   rc = kI CA3/12CB

A + B → D      rD = k2CACB3/2

b. For the set of reactions in part (a) 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 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.

Reference no: EM13864313

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