In each of the cases below, (a) through (e), you will need to explain why you chose the answer you did. The elementary isomerization exothermic reaction A>B
<
is carried out isothermally at 400 K in a PBR in which pressure drop plays a role, with alpha = 0.001 kg^-1. Currently. 50% conversion is achieved. The equilibrium constant at this temperature is 3.0.
a. For a fixed mass flow rate m, if the reactor diameter is increased by a factor of 4, the conversion will
(i) X > 0.5
(ii) X < 0.5
(iii) X = 0.5
(iv) insufficient information to tell.
b. For a fixed mass flow rate m., the equilibrium conversion is
(i) X_e = 0.5
(ii) X_e = 0.667
(iii) X_e = 0.75
(iv) insufficient information to tell
c. For a fixed mass flow rate m, if the reactor diameter is increased by a factor of 2 the equilibrium conversion X_e will
(i) increase
(ii) decrease
(iii) remain the same
(iv) insufficient information to tell
d. For a fixed mass flow rate m., if the particle size is increased, the equilibrium conversion
(i) increase
(ii) decrease
(iii) remain the same
(iv) insufficient information to tell
d. For a fixed mass flow rate m., if the particle size is the conversion will
(i) increase
(ii) decrease
(iii) remain the same
(iv) insufficient information to tell