Mass Transfer

Mass Transfer -1

1. What are the driving force of the diffusion.

2. Diffusion in liquids, Diffusion in gas, Diffusion in solid

3. Diffusivity relation with temperature and pressure.

4. Mass Transfer coefficient

5. Over all mass transfer coefficient

6. Mass, Heat, momentum analogies

7. Interphase Mass transfer coefficient

8. Absorption

a) Selection of solvent for absorption and stripping

b) Design of packed tower

c) Design of packed based on overall mass transfer coefficient

d) Counter current multistage absorption (Tray absorber)

e) Algebraic determination of number of ideal stage

f) Calculation of height of Packed bed , Tray tower

f) Continuous Contact equipment

g) Packing of packed tower

9. Drying and Humidification

a) Equilibrium of drying

b) Material and enthalpy balanced for drying operation

c) Equilibrium moisture curve

c) Drying equipment (Tray dryer, rotary dryer, drum dryer, spray dryer, fluidised bed dryer, Pneumatic Dryer)

Mass Transfer-I short questions:

Practical Examples and theoretical calculations

Mass Transfer- II

1. Distillation and evaporation difference

2. Types of distillation

3. Method to calculate the theoretical trays

4. Extraction

5. Leaching

Mass Transfer Lab

1. Packed bed distillation

2. Bubble cap distillation

3. Extractive distillation

4. Absorption experiments

5. Adsorption experiments

6. Diffusion experiments