Question

Moisture of an unusual and very effective drug mixture is brought to very low value (3%, w / w)
ready-to-use powder form can be obtained. For this purpose, to draw the moisture in the product to the desired value
A system with a single-effect evaporator and a vacuum dryer is designed for. System
The current fed is 1000 kg / h and this flow contains 12% total solids. Feed into two separate streams
are separated: one of them is given directly to a single evaporator, the other is bypass
bypassing the evaporator. The current coming from a single-effect evaporator with the current bypassed.
After mixing, the mixture is given to the vacuum evaporator and the targeted 3% humidity value
It is provided. Bypass flow 200 kg / h, amount of water removed with a single-effect evaporator 500
kg / h, a) what is the hourly production amount of the drug product obtained? B) Coming from single effect evaporator
analyze the mass fractions of the current. C) Other unknown currents in the system and
Find their composition.

Answer 1