Mass Transfer for Interview (10 Hours Full-Course)

Mass Transfer is one of the most core and technical subjects in chemical engineering interviews. Whether it’s distillation, absorption, drying, or extraction, recruiters test your ability to explain both the fundamentals and their practical design applications in columns, reboilers, and separation equipment.

This 10-hour structured course is designed to make you interview-ready in Mass Transfer.

🌟 What’s Included

🎥 5 × Recorded Lectures (10 Hours Total) – step-by-step coverage of fundamentals, operations, and design.

📑 Complete Notes PDF (100+ Pages) – crisp, well-organised notes with formulas, diagrams & comparisons.

📘 Advanced Resources PDF – covering reboilers, special distillation methods, and industry case studies.

📌 Topics Covered (with Interview Focus)

• Fundamentals
• Why mass transfer occurs? – chemical potential difference.
• Modes: molecular diffusion, convective transfer, interfacial transfer.
• Fick’s laws – steady & unsteady state diffusion.
• Mass Transfer Operations
• Absorption & stripping (e.g., CO₂ absorption, ammonia stripping).
• Distillation (flash, steam, fractional, extractive, azeotropic).
• Liquid–liquid extraction & drying.
• Humidification/dehumidification.
• Membrane separation & adsorption.
• Column Design & Equipment
• Tray towers – sieve, valve, bubble cap trays.
• Tray hydraulics – weeping, flooding, turndown ratio.
• Packed towers – random vs. structured packing, advantages & limitations.
• Tray vs. packed columns – pressure drop, holdup, corrosion resistance, fouling.
• Distillation Design & Methods
• McCabe–Thiele method – assumptions, operating lines, CMO.
• Ponchon–Savarit method – enthalpy-based approach.
• Relative volatility, reflux ratio, stripping vs. rectification section.
• Fair’s method for column diameter estimation.
• Special Distillation Techniques
• Steam distillation – for heat-sensitive materials.
• Extractive distillation – using high-boiling solvents.
• Azeotropic distillation – breaking azeotropes (e.g., ethanol-water dehydration).
• Reboilers & Design Considerations
• Thermosiphon vs. kettle reboilers – concepts, differences, applications.
• Performance Parameters
• HETP, NTP, HTU, NTU – detailed explanation with physical meaning & examples.
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💡 Why Take This Course?

• Covers all mass transfer topics recruiters love to ask.
• Focus on both concepts and design calculations.
• Notes + advanced resources give you interview-ready clarity.

👉 By the end of this course, you’ll be able to confidently explain and solve interview questions on any mass transfer operation or design method – from Fick’s law to azeotropic distillation.