Question

6. (18%) The elementary irreversible gas phase catalytic reaction A + B xrightarrow{k} C + D is to be carried out in a moving-bed reactor at constant temperature. The reactor contains 5 kg of catalyst. The feed is stoichiometric in A and B. The entering concentration of A is 0.2 mol/dm³. The catalyst decay law is zero-order with k_D = 0.2 s?¹. The volumetric flow rate is v? = 1.0 dm³/s and k = 1.0 dm?/(mol·kg cat·s). (a) What is the maximum conversion that could be achieved (i.e., at infinite catalyst loading rate)? (6%) (b) What catalyst loading rate is necessary to achieve 40% conversion? (8%) (c) At what catalyst loading rate (kg/s) will the catalyst activity be exactly zero at the exit of the reactor? (4%)

          6. (18%) The elementary irreversible gas phase catalytic reaction

A + B xrightarrow{k} C + D

is to be carried out in a moving-bed reactor at constant temperature. The reactor contains 5 kg of catalyst. The feed is stoichiometric in A and B. The entering concentration of A is 0.2 mol/dm³. The catalyst decay law is zero-order with k_D = 0.2 s?¹. The volumetric flow rate is v? = 1.0 dm³/s and k = 1.0 dm?/(mol·kg cat·s).
(a) What is the maximum conversion that could be achieved (i.e., at infinite catalyst loading rate)? (6%)
(b) What catalyst loading rate is necessary to achieve 40% conversion? (8%)
(c) At what catalyst loading rate (kg/s) will the catalyst activity be exactly zero at the exit of the reactor?
(4%)

6. (18%) The elementary irreversible gas phase catalytic reaction

A + B xrightarrowk C + D

is to be carried out in a moving-bed reactor at constant temperature. The reactor contains 5 kg of catalyst. The feed is stoichiometric in A and B. The entering concentration of A is 0.2 mol/dm³. The catalyst decay law is zero-order with kD = 0.2 s?¹. The volumetric flow rate is v? = 1.0 dm³/s and k = 1.0 dm?/(mol·kg cat·s).
(a) What is the maximum conversion that could be achieved (i.e., at infinite catalyst loading rate)? (6%)
(b) What catalyst loading rate is necessary to achieve 40% conversion? (8%)
(c) At what catalyst loading rate (kg/s) will the catalyst activity be exactly zero at the exit of the reactor?
(4%)

Added by Victor C.

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