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The exhaustive list of topics in Mass Transfer Operations in which we provide Help with Homework Assignment and Help with Project is as follows:

  • Diffusion Mass Transfer:
    • Mass transfer and diffusion, molecular diffusion in gases, liquids, biological solutions and gels
    • Diffusivity measurement and prediction , multicomponent diffusion, molecular diffusion in solids
    • Numerical methods for steady-state molecular diffusion in two dimension
  • Mass Transfer Coefficients:
    • Concept of mass transfer coefficients, mass transfer under laminar and turbulent flow past solids
    • Boundary layers, theories of mass transfer and their applications, interphase mass transfer
    • Equilibrium and diffusion between phases
    • Use of mass transfer coefficients, mass transfer coefficients for different geometries, material balances and stages
  • Equipment for Gas-Liquid Operations:
    • Sparged and agitated vessels, venture scrubber, wetted wall towers
    • Tray and packed towers, mass transfer coefficients for packed towers
  • Absorption:
    • Theory and modeling of plate columns, non-isothermal operation (modeling of plate columns)
    • Modeling of packed columns, introduction to multicomponent absorption

Distillation:

  • Flash distillation, differential distillation, continuous fractionation, modeling by method of McCabe & Thiele
  • Multicomponent distillation, azeotropic distillation, extractive distillation
  • Mass transfer operations in process industries:
    • Absorption
    • Distillation
    • Extraction
    • Adsorption
    • Drying
    • Design and performance of unit
  • Operations:
    • Rate and equilibrium stage based modeling approaches
  • 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