A batch process is operated with the following sequence. The feed to the batch process consists of a solution of 500 L of ethanol with 120 mole of A and 120 mole of B. If the temperature of the solution is sufficient, A and B will react to form P (the desired product): A (eth) + B (eth) → P (s) DHreact  = − 250 kJ/mol (1) Note that the product P is sparingly soluble in ethanol, which helps facilitate its removal from the reaction solution. It can be assumed that the reaction rate is first-order in both the concentration of A (cA ) and B (cB ), and so second-order overall: -r A = k c A cB  The batch process consists of the following FOUR steps: Initially, the tank is empty. 1. Fill tank with solution (ethanol/A/B). 50°C (1 hour) Increase temperature of the feed from 20°C to 2. Reaction takes place isothermally at 50°C (4 hours, to give conversion of 50%) 3. Filtration of reaction solution to give product P (2 hours) 4. Drying with hot nitrogen gas followed by the removal of powder product (3 hours)   The conversion is 50%   -what is the overall material balance of this process?

A batch process is operated with the following sequence. The feed to the batch process consists of a solution of 500 L of ethanol with 120 mole of A and 120 mole of B. If the temperature of the solution is sufficient, A and B will react to form P (the desired product):

A (eth) + B (eth) → P (s)

DHreact 

=

−

250

kJ/mol

(1)

Note that the product P is sparingly soluble in ethanol, which helps facilitate its removal from the reaction solution. It can be assumed that the reaction rate is first-order in both the concentration of A (cA ) and B (cB ), and so second-order overall:

-r A = k c A cB 

The batch process consists of the following FOUR steps:

Initially, the tank is empty.

1. Fill tank with solution (ethanol/A/B). 50°C (1 hour)

Increase temperature of the feed from 20°C to

2. Reaction takes place isothermally at 50°C (4 hours, to give conversion of 50%)

3. Filtration of reaction solution to give product P (2 hours)

4. Drying with hot nitrogen gas followed by the removal of powder product (3 hours)

The conversion is 50%

-what is the overall material balance of this process?