# Mass Transfer

IIT Kanpur, , Prof. Nishith Verma

Updated On 02 Feb, 19

IIT Kanpur, , Prof. Nishith Verma

Updated On 02 Feb, 19

Mass transfer operations in process industries : Absorption, Distillation, Extraction, Adsorption, Drying; Design and performance of unit - Operations : Rate and equilibrium stage based modeling approaches - Fundamentals of mass transfer : Diffusion, Fick's first law, mass transfer coefficients, film theory/surface renewal theory/boundary layer theory,Cocurrent, counter current and cross-current continuous contact, material balance and operating line - Equilibrium stage modeling : Co-current cascades, counter-current cascades, cross-current cascades, operating and equilibrium lines, number of equilibrium stages - Absorption : Equilibrium approach : Henry's law, Raoult's law, material balance, operating line, minimum liquid flowrates, number of equilibrium stages, deviation from ideal systems (Murphee efficiency) - Rate approach : Number of transfer units (NTU), height of transfer units (HTU) Packed and staged columns - Hydrodynamic considerations : Loading/flooding criterion, pressure-drops - Distillation : Vapor-liquid equilibrium, T-x-y diagram, bubble and dew point calculations - Flash calculations,Ponchon-Savarit and McCabe-Thiele method for equilibrium stage calculations - Minimum and total reflux., optimum design

Deviation from ideal VLE : azeoptropic distillation, packed column design, complex distillation columns,Fenske- Underwood-Gilliland shortcut method for multi-component distillation Design - Extraction : Ternary liquid-liquid equilibrium, triangular coordinates, single-stage extraction,Multi-stage cross-current extraction, continuous countercurrent multistage extraction - Adsorption and ion exchange:Physical and chemical adsorption, adsorbents, adsorption equilibrium and isotherms,Single-stage, multi-stage cross-current and multi-stage counter current operations,equilibrium and operating lines,Liquid-solid agitated vessel adsorber, packed continuous contactor, breakthrough curves,Rate equations for non-porous and porous adsorbents, nonisothermal operation, pressure-swing adsorption,Principles of ion exchange, analogy between adsorption and ion exchange - Drying : Equilibrium, insoluble and soluble liquids,Drying rate curve, rate and time of batch drying,Mechanisms of batch drying, continuous drying.

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4.1 ( 11 )

Mass Transfer II by Prof. Nishith Verma, Department of Chemical Engineering, IIT Kanpur. For more details on NPTEL visit httpnptel.iitm.ac.in

Sam

Sep 12, 2018

Excellent course helped me understand topic that i couldn't while attendinfg my college.

Dembe

March 29, 2019

Great course. Thank you very much.