PM6601 - MASS TRANSFER II (Syllabus) 2013-regulation Anna University

PM6601 - MASS TRANSFER II (Syllabus) 2013-regulation Anna University

PM6601	MASS TRANSFER II	LTPC

3104

OBJECTIVE:

Students will learn to design absorber and stripper, distillation column, extraction and leaching equipments and adsorber.

UNIT I	ABSORPTION	9

Gas Absorption and Stripping – Equilibrium; material balance; limiting gas-liquid ratio; tray tower absorber - calculation of number of theoretical stages, tray efficiency, tower diameter; packed tower absorber – rate based approach; determination of height of packing using HTU and NTU calculations.

UNIT II	DISTILLATION	9

Vapour liquid equilibria - Raoult’s law, vapor-liquid equilibrium diagrams for ideal and non-ideal systems, enthalpy concentration diagrams. Principle of distillation - flash distillation, differential distillation, steam distillation, multistage continuous rectification, Number of ideal stages by Mc.Cabe - Thiele method and Ponchan - Savarit method, Total reflux, minimum reflux ratio, optimum reflux ratio. Introduction to multi-component distillation, azeotropic and extractive distillation

UNIT III	LIQUID-LIQUID EXTRACTION	9

Liquid - liquid extraction - solvent characteristics-equilibrium stage wise contact calculations for batch and continuous extractors- differential contact equipment-spray, packed and mechanically agitated contactors and their design calculations-packed bed extraction with reflux. Pulsed extractors, centrifugal extractors-Supercritical extraction

UNIT IV	LEACHING	9

Solid-liquid equilibria- leaching equipment for batch and continuous operations- calculation of number of stages - Leaching - Leaching by percolation through stationary solid beds, moving bed leaching, counter current multiple contact (shank’s system), equipments for leaching operation, multi stage continuous cross current and counter current leaching, stage calculations, stage efficiency.

UNIT V	ADSORPTION AND ION EXCHANGE & MEMBRANE SEPARATION PROCESS	9

Adsorption - Types of adsorption, nature of adsorbents, adsorption equilibria, effect of pressure and temperature on adsorption isotherms, Adsorption operations - stage wise operations, steady state moving bed and unsteady state fixed bed adsorbers, break through curves. Principle of Ion exchange, techniques and applications. Solid and liquid membranes; concept of osmosis; reverse osmosis; electro dialysis; ultrafiltration.

TOTAL (L : 45 + T : 15) : 60 PERIODS

OUTCOME:

Students will learn to design absorber and stripper, distillation column, extraction and leaching equipments and adsorber

TEXT BOOKS:

1. Wankat, P., “Equilibrium Stage Separations”, Prentice Hall, 1993.
2. Treybal, R.E., “Mass Transfer Operations “, 3rd Edn., McGraw-Hill, 1981.
3. Geankoplis, C.J., “Transport Processes and Unit Operations”, 4th Edition, Prentice Hall Inc., New Jersey, 2003.

REFERENCES:

1. Seader, J.D. and E.J. Henley, “Separation Process Principles”, 2nd Ed., John Wiley,2006.
2. McCabe, W.L., Smith, J.C., and Harriot, P., “Unit Operations in Chemical Engineering”, 7th Edn., McGraw-Hill, 2005.
3. King, C. J., “Separation Processes “, 2nd Edn.,Tata McGraw-Hill 1980.