Question

Question 3 The following is a liquid-phase reaction that is performed in a Continuous Stirred Tank Reactor (CSTR) to produce glycol. CH2-OH KACAC The concentrations of ethylene oxide and water, entering the inlet streams are 16.13 mol/dm' and 5. 50 moldm2, respectively. The specific reaction rate, &02 mmols at 300 K with activation energy, E of 12500 cal/mol. The ideal gas cal/mol.K. Assume that the reaction follows an elementary rate law. t is 1.987 a. By using a stoichiometric table, prove the reaction rate as a function of conversion as below: (6 marks) b. Determine the space-time (unit: seconds) , for 90% conversion at 300 K. (4 marks) c. If the volumetric flow rate is 200 L/sec, calculate the reactor volume (unit: litres) based on the determined space time in Question 3(0b) (3 marks) d. When the reaction temperature is raised to 350 K, determine, i. the new specific reaction rate, k ii. the new reactor volume (unit: litres) (4 marks) (3 marks) (Total: 20 marks)

Answer 1

Anu:- (a) A 13 1 2 Soo Cal/mol : 느 -55.50-3-44 16.13

Notebook tebook d X

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A97 V~ 27.898 200-345-9 le, 16-13 V 3451345914 L A Px exponential R.T RT 2 In kl-In A-E RT RT RT2R 2 R 12500 x50 1:981x300 X35 o 125 0o 6.2 1.981 300 35 K 1250 2 145 6

2 S JA て: new residenaamd 2 S: 3 .997て2-0.9 O. 0 16 13 (1) て 3 499 X16 13 X 6 .0 ] FA-S Ao 16.12. 2994 L Volume