Question

Question 4 [30 marks] (a) Consider a liquid phase reaction between A and B at 25°C: A + B ? T The rate equation is of the form ? r_A = k C_A C_B and the second order rate constant for the reaction is 9.92x10?³ m³ kmol?¹ s?¹. If the initial concentration of A and B are 0.05 kmol m?³ and 1.0 kmol m?³, respectively, calculate the time required to convert 70% of the limiting reactant in a batch reactor. [15 marks] (b) When quinolene, (C?H?N) is hydrogenated using pure H? at 350°C over a catalyst, the following three reactions can occur (see below) to various extents. Quinolene (C?H?N) ? H? Tetrahydroquinolene (C?H??N) ? H? ? Butylbenzylamine (C?H??N) ? H? Decahydroquinolene (C?H??N) The moles of hydrogen required to convert the reactants in each step can be calculated from increasing hydrogen content in the products. A charge of 100 moles of quinolene and 500 mol H? has been introduced into a batch reactor. After 10 hours the reactor contents were analysed and the constituents were found to be as follows: Quinolene (C?H?N): 40 mol Hydrogen (H?): 290 mol Decahydroquinolene (C?H??N): 20 mol Based on the data provided (i) Write down the stoichiometric chemical equations for each of the reaction steps. (3 marks) (ii) State if the amount of H? charged into the reactor is sufficient to convert Quinolene to products completely. (3 marks) (iii) Determine the amounts (in moles) of tetrahydroquinolene (C?H??N) and butylbenzylamine (C?H??N) after 10 hours. (9 marks)

          Question 4 [30 marks]

(a) Consider a liquid phase reaction between A and B at 25°C:

A + B ? T

The rate equation is of the form ? r_A = k C_A C_B and the second order rate constant for the reaction is 9.92x10?³ m³ kmol?¹ s?¹.

If the initial concentration of A and B are 0.05 kmol m?³ and 1.0 kmol m?³, respectively, calculate the time required to convert 70% of the limiting reactant in a batch reactor.
[15 marks]

(b) When quinolene, (C?H?N) is hydrogenated using pure H? at 350°C over a catalyst, the following three reactions can occur (see below) to various extents.

Quinolene (C?H?N)
? H?
Tetrahydroquinolene (C?H??N) ? H? ? Butylbenzylamine (C?H??N)
? H?
Decahydroquinolene (C?H??N)

The moles of hydrogen required to convert the reactants in each step can be calculated from increasing hydrogen content in the products.

A charge of 100 moles of quinolene and 500 mol H? has been introduced into a batch reactor.

After 10 hours the reactor contents were analysed and the constituents were found to be as follows:
Quinolene (C?H?N): 40 mol
Hydrogen (H?): 290 mol
Decahydroquinolene (C?H??N): 20 mol

Based on the data provided

(i) Write down the stoichiometric chemical equations for each of the reaction steps.
(3 marks)

(ii) State if the amount of H? charged into the reactor is sufficient to convert Quinolene to products completely.
(3 marks)

(iii) Determine the amounts (in moles) of tetrahydroquinolene (C?H??N) and butylbenzylamine (C?H??N) after 10 hours.
(9 marks)

Question 4 [30 marks]

(a) Consider a liquid phase reaction between A and B at 25°C:

A + B ? T

The rate equation is of the form ? rA = k CA CB and the second order rate constant for the reaction is 9.92x10?³ m³ kmol?¹ s?¹.

If the initial concentration of A and B are 0.05 kmol m?³ and 1.0 kmol m?³, respectively, calculate the time required to convert 70% of the limiting reactant in a batch reactor.
[15 marks]

(b) When quinolene, (C?H?N) is hydrogenated using pure H? at 350°C over a catalyst, the following three reactions can occur (see below) to various extents.

Quinolene (C?H?N)
? H?
Tetrahydroquinolene (C?H??N) ? H? ? Butylbenzylamine (C?H??N)
? H?
Decahydroquinolene (C?H??N)

The moles of hydrogen required to convert the reactants in each step can be calculated from increasing hydrogen content in the products.

A charge of 100 moles of quinolene and 500 mol H? has been introduced into a batch reactor.

After 10 hours the reactor contents were analysed and the constituents were found to be as follows:
Quinolene (C?H?N): 40 mol
Hydrogen (H?): 290 mol
Decahydroquinolene (C?H??N): 20 mol

Based on the data provided

(i) Write down the stoichiometric chemical equations for each of the reaction steps.
(3 marks)

(ii) State if the amount of H? charged into the reactor is sufficient to convert Quinolene to products completely.
(3 marks)

(iii) Determine the amounts (in moles) of tetrahydroquinolene (C?H??N) and butylbenzylamine (C?H??N) after 10 hours.
(9 marks)

Added by Caitlin C.

Question

Please give Ace some feedback