calculate the molar Flowrates, D1, D2, B1 and B2. 

Correction: Make Benzene in B2 as 1%.

 

1. Basis for number 4: _[A]_

(Include the units in your answer )

1. D1 in mol/min
2. B1 in mol/min
3. D2 in mol/min
4.  B2 in mol/min

Q5. Fresh Orange juice contains 12.0 wt % solids and the balance water, and concentrate orange juice contains 42 % wt solids. Initially a single evaporation process was used for the concentration, butbvolatile constituents of the juice escaped with the water, leaving the concentrate with a flat taste.  The current process overcomes this problem by bypassing the evaporator with a fraction of the fresh juice.  The juice that enters the evaporator is concentrated to 58 % wt solids, and the evaporator product stream is mixed with the bypassed fresh juice to achieve the desired final concentration.

a. Draw and label a flowchart of this process, neglecting the vaporization of everything in the juice but water.

b. Calculate the amount of product (42 % concentrate) produced per 100 kg fresh juice fed to the process. 

c. Calculate the fraction of the feed that bypasses the evaporator.

For Number 5 letter b:

1. The amount of product produced per 100 kg fresh juice fed to the process is ________ kg.

For Number 5 letter c:

1. The fraction of feed that bypasses the evaporator is __________.

15% Xylene 25% Styrene 40% Toluene 20% Benzene F = 70 mol/min D B D1 7% Xylene 4% Styrene 54% Toluene 35% Benzene B1 18% Xylene 24% Styrene 42% Toluene 16% Benzene 15% Xylene D2 10% Styrene 54% Toluene 21% Benzene 82 24% Xylene B2 65% Styrene 10% Toluene 2% Benzene