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MASS TRANSFER-I
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DI04005021
Code: DI04005021
Credits: 4
Semester 4
MECHANICAL
Mass Transfer-I
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Follow on Instagram for UpdatesMass Transfer-I Syllabus — Unit-wise Content
The official GTU curriculum for Mass Transfer-I (subject code DI04005021) as prescribed for MECHANICAL · Semester 4 divides the course into 6 units, covering 64 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (DI04005021)Unit 1 Fundamental of Mass Transfer
- 1.1. Introduction of Mass transfer operations
- 1.2. Classification of mass transfer operations based on phases
- 1.3. Basic principles and application of Membrane separation
- 1.4. Direct and Indirect operations
- 1.5. Choice of separation method
- 1.6. Different methods of conducting mass transfer operation
- 1.6.1. Solute recovery and fractionation
- 1.6.2. Unsteady state operation
- 1.6.3. Steady state operation
- 1.6.4. Stage wise operation
- 1.6.5. Continuous contact operation
Unit 2 Molecular Diffusion in Fluids
- 2.1. Molecular and Eddy diffusion
- 2.2. Rate of diffusion in Fluids
- 2.3. Molar flux, diffusivity and concentration gradient in Fluids
- 2.4. Fick’s law of diffusion
- 2.5. Effect of temperature, pressure and concentration on diffusivity
- 2.6. Derivation of diffusivity equation (DAB=DBA)
- 2.7. General equation for steady state molecular diffusion in fluids at rest & in laminar flow
- 2.8. Molecular diffusion in gases with numerical Derive Equation for (a) Steady state diffusion of component A through non diffusing B (b) Equimolal counter diffusion of A and B
- 2.9. Molecular diffusion in liquids with numerical Derive Equation for a) Steady state diffusion of A through non diffusing B with simple numerical
- 09. 20 GUJARAT TECHNOLOGICAL UNIVERSITY Program Name: Diploma Engineering Level: Diploma Branch: Chemical Engineering Subject Code: DI04005021 Subject Name: Mass Transfer-I w.e.f. 2025-26 http://syllabus.gtu.ac.in/ Page 3 of 6 (b) Steady state equimolal counter diffusion with simple numerical
Unit 3 Interphase Mass Transfer
- 3.1. Concept of equilibrium
- 3.2. Diffusion between phases (two resistance concept)
- 3.3. Local and overall two phases mass transfer co-efficient and their uses
- 3.4. Stage and Stage Efficiency and Types of Cascade
Unit 4 Gas Absorption
- 4.1. Types of gas absorption
- 4.2. Industrial application of gas absorption
- 4.3. Equilibrium solubility of different gases in liquids
- 4.4. Effect of temperature and pressure on absorption
- 4.5. Ideal liquid solutions and Raoult’s law
- 4.6. Choice of solvent for gas absorption
- 4.7. Material balance for one component transfer with numerical
- 4.7.1. Counter current flow
- 4.7.2. Co-current flow
- 4.8. Minimum liquid-gas ratio for absorber
- 4.10. Construction and working of continuous contact equipments for gas absorption
- 4.10.1. Tray Tower
- 4.10.2. Packed Tower
Unit 5 Liquid Liquid Extraction
- 5.1. Introduction and Industrial applications of liquid extraction
- 5.2. Liquid Equilibria
- 5.3. Equilateral-Triangular Co-ordinates
- 5.4. Systems of Three Liquids-One Pair Partially Soluble
- 5.4.1. Effect of temperature and pressure
- 5.5. System of Three Liquids-Two Pairs Partially Soluble
- 5.6. Choice of solvent
- 5.7. Stage wise operation
- 5.7.1. Material Balance for Single stage extraction with numerical
- 5.7.2. Material Balance for Multistage cross current extraction with numerical
- 5.8. Stage wise extractor - Construction and working of
- 5.8.1. Agitated Vessel
- 5.8.2. Gravity Settlers
- 5.8.3. Sieve Tray Towers
- 5.9. Continuous Extractors - Construction and working of
- 10. 22 GUJARAT TECHNOLOGICAL UNIVERSITY Program Name: Diploma Engineering Level: Diploma Branch: Chemical Engineering Subject Code: DI04005021 Subject Name: Mass Transfer-I w.e.f. 2025-26 http://syllabus.gtu.ac.in/ Page 4 of 6
- 5.9.1. Packed Tower
- 5.9.2. Rotating Disk Contactor
- 5.9.3. Centrifugal Extractors
Unit 6 Leaching
- 6.1. Introduction and Industrial applications of leaching
- 6.2. Preparation of solid
- 6.3. Temperature of leaching
- 6.4. Methods of operation and equipment
- 6.4.1. Unsteady State Operation- In place leaching, Heap leaching, Leaching by shanks system, Percolation in closed vessels.
- 6.4.2. Steady State Operation - Leaching during grinding, Door Agitator, Continuous Countercurrent Decantation (CCD), Leaching of vegetable seeds - Rotocell and Bollman Extractor
- 6.5. Material balance for single stage leaching
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