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Course

Subject:	Chemical Engineering
Views:	170,480

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Name:	University of Colorado (University of Colorado)
Type:	University

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Separations and Mass Transfer

Video Lectures

Displaying all 62 video lectures.

Lecture 1 Play Video	Osmotic Pressure Explanation of osmotic pressure.
Lecture 2 Play Video	Osmotic Pressure: Protein Molecular Weight (Bio) Use osmotic pressure of a protein solution to determine the protein molecular weight.
Lecture 3 Play Video	Phase Equilibrium: Txy Diagram A conceptual question investigating how the molar composition changes to a vapor-liquid equilibrium system as temperature is changed.
Lecture 4 Play Video	Heat Removal to Condense a Vapor Mixture Describes the steps to condense a binary vapor mixture at its dew point to a liquid at its bubble point using the concept of state functions.
Lecture 5 Play Video	Binary VLE Vapor-liquid equilibrium calculations for an ideal binary system.
Lecture 6 Play Video	Batch Distillation: Azeotrope The changes in temperature and composition of the vapor are plotted versus time for batch distillation of a binary liquid that has an azeotrope.
Lecture 7 Play Video	Binary Flash Distillation Example Example problem focused on determining the operating conditions for a binary flash distillation column.
Lecture 8 Play Video	Rachford-Rice Procedure for Isothermal Flash Distillation Derives the Rachford-Rice procedure for isothermal flash distillation calculations for multiple components.
Lecture 9 Play Video	Packed Bed Column Height An example describing how to calculate the height of a packed bed distillation column.
Lecture 10 Play Video	Binary Distillation with Multiple Feeds Binary distillation example with multiple feeds solved using McCabe-Thiele analysis.
Lecture 11 Play Video	Binary Distillation with Non-Optimal Feed Example of a binary distillation column operating with a feed at a non-optimal location. Column has total reboil and no condenser.
Lecture 12 Play Video	Binary Distillation with Open Steam Heating Binary distillation example involving open steam (direct steam) heating instead of a reboiler.
Lecture 13 Play Video	Binary Distillation with Side Stream Product Binary distillation example involving a side stream product.
Lecture 14 Play Video	Distillation with No Distillate An example of a distillation column having no distillate stream and a total reboiler. Determine bottoms composition and composition of a sample of distillate taken at steady-state conditions.
Lecture 15 Play Video	Distillation: Murphree Efficiency Example describing the use of Murphree efficiency and its effect on the number of stages in a distillation column.
Lecture 16 Play Video	Distillation using Partial Condenser (Part I) Example separations problem for distillation of acetone/ethanol. Balances and determining stage number and feed entrance included. Made by faculty at the University of Colorado Boulder Department of Chemical and Biological Engineering. Check out our Separations and Mass Transfer playlist at http://www.youtube.com/playlist?list=PL61BFC1C064B40049
Lecture 17 Play Video	Distillation using Partial Condenser (Part II) A continuation of Distillation - Partial Condenser/Total Reboil. Determine the number stages for minimum reflux and total reflux.
Lecture 18 Play Video	Distillation: Side Stream Feed Example distillation problem consisting of feed and secondary side stream feed containing steam. Determines feed location and number of stages.
Lecture 19 Play Video	Absorption of a Dilute Species Calculates the number of stages for an absorption column needed to remove chloroform from an air stream given inlet and outlet specifications.
Lecture 20 Play Video	Partially Miscible Liquid-Liquid Extraction Determining the number of stages in a liquid-liquid extraction for a partially miscible system. Given equilibrium data, design the separations system.
Lecture 21 Play Video	Single-Effect Evaporator: Introduction Describes the operation of a single-effect evaporator which is used to concentrate a solution.
Lecture 22 Play Video	Single-Effect Evaporator: Heat Transfer Area Calculates the heat transfer area for a single-effect evaporator that is used to concentrate a salt solution.
Lecture 23 Play Video	Triple-Effect Evaporator: Introduction Describes the operation of a triple-effect evaporator to concentrate a solute liquid solution using significantly less energy than a single-effect evaporator.
Lecture 24 Play Video	Triple-Effect Evaporator: Backward Feed Describes how a triple-effect evaporator with backward feed concentrates a dilute solution.
Lecture 25 Play Video	Reverse Osmosis Describes the process of reverse osmosis in which a membrane is used to separate a solvent-solute mixture because of a pressure difference across a membrane.
Lecture 26 Play Video	Reverse Osmosis: Changes in Driving Force Describes how the driving force for reverse osmosis decreases due to concentration polarization and the increase in solute concentration due to solvent permeation.
Lecture 27 Play Video	Diffusion through a Carbon Rod (Part I) Calculates the initial rate of carbon dioxide production due to the reaction of carbon with oxygen diffusing through a quiescent boundary layer of air.
Lecture 28 Play Video	Diffusion through a Carbon Rod (Part II) Calculates the time for a carbon rod to disappear due to the reaction of carbon with oxygen diffusing through a boundary layer.
Lecture 29 Play Video	Mass Transfer in a Catalyst Sphere Uses a shell balance to determine the rate of product formed with respect to time for a spherical catalyst.
Lecture 30 Play Video	Diffusion Limited Drug Delivery (Bio) Derives the differential equation for a diffusion limited drug delivery system.
Lecture 31 Play Video	Unsteady-State Diffusion Derives the differential equations for unsteady-state diffusion for a herbicide spill into the air and soil.
Lecture 32 Play Video	Convective Mass Transfer A lead tank contains water. Lead is leaching into the water through convective transfer. Determine a relationship between concentration of lead and the dependent variables of the system.
Lecture 33 Play Video	Convective Mass Transfer: Part I (Bio) Derives an equation for convective mass transfer using a mass balance on a differential element.
Lecture 34 Play Video	Convective Mass Transfer: Part II (Bio) Finds the exiting concentration of a chemical agent leaving a blood vessel.
Lecture 35 Play Video	Excel Solver Introduction Describes how to use the solver function in Excel 2010.
Lecture 36 Play Video	Hunter-Nash Method: Liquid-Liquid Extraction Explains how to use the Hunter-Nash graphical method to determine the number of stages needed to achieve a specified liquid-liquid extraction separation.
Lecture 37 Play Video	Interpolating Tie Lines on a Ternary Diagram Describes how to interpolate equilibrium tie lines on a ternary diagram.
Lecture 38 Play Video	Adsorption Introduction Explains the concept of adsorption and derives the Langmuir isotherm.
Lecture 39 Play Video	What is Chemical Potential? (Multi-Component Systems) Explains chemical potential for a multi-component system and discusses movement between phases and chemical reactions.
Lecture 40 Play Video	Diffusion into a Solid Calculates the time for carbon to diffuse into a metal alloy at high temperature.
Lecture 41 Play Video	Binary Phase Diagram (Txy and xy) Explains how to generate phase diagrams and read them for use in separation calculations.
Lecture 42 Play Video	Flash Distillation Derivation Derives the operating line for binary flash distillation and shows how to use it.
Lecture 43 Play Video	Flash Distillation Energy Balance Determines the operating temperatures and energy requirements for flash distillation.
Lecture 44 Play Video	Enthalpy Concentration Diagram Shows how to read an enthalpy concentration diagram and determine phase compositions.
Lecture 45 Play Video	Enthalpy Concentration Diagram Example Uses an enthalpy composition diagram in a partial condensation problem.
Lecture 46 Play Video	Deriving Molar Flux Equations Derives the equations for molar fluxes using Fick's law of diffusion.
Lecture 47 Play Video	Equimolar Counterdiffusion (EMD) Derives the equations to use in the case of equimolar counterdiffusion (EMD).
Lecture 48 Play Video	Equimolar Counterdiffusion Example Calculates species' velocities and molar flow rates for a binary mixture undergoing equimolar counter diffusion.
Lecture 49 Play Video	Unimolecular Diffusion (UMD) Derives the flux equations for the unimolecular diffusion of A through a stagnant film of B.
Lecture 50 Play Video	Unimolecular Diffusion Example Uses the unimolecular diffusion flux equations to solve for initial flux and time to evaporate a fluid from a beaker.
Lecture 51 Play Video	McCabe-Thiele Graphical Method Example (Part I) Uses the McCabe-Thiele graphical method to determine the number of equilibrium stages in a distillation column.
Lecture 52 Play Video	McCabe-Thiele Graphical Method Example (Part II) Uses the McCabe-Thiele graphical method to determine the number of equilibrium stages in a distillation column.
Lecture 53 Play Video	Deriving the Differential Equations of Mass Transfer Derives the differential equations for mass transfer using the integral method and shell balances.
Lecture 54 Play Video	Diffusion from Spherical Particle Determine the production rate of a species diffusing away from a reactive spherical particle.
Lecture 55 Play Video	Hunter-Nash Method: Liquid-Liquid Extraction Example Uses the Hunter-Nash graphical method to solve a liquid-liquid extraction separation problem.
Lecture 56 Play Video	Mass Transfer Setup to Reactive Surface Determines the concentration of a species with respect to position for flux to a reactive surface.
Lecture 57 Play Video	Langmuir Isotherms for Binary Mixture Demonstrates the amounts adsorbed on a surface for a binary gas mixture using an interactive Mathematica simulation. The adsorption is modeled using extended Langmuir isotherms.
Lecture 58 Play Video	Pxy Diagram (Simulation) Uses an interactive Mathematica simulation to describe a pressure-mole fraction diagram (P-x-y) that is generated with Raoult's law. Behavior is discussed where the pressure is changed at constant overall composition and where the overall composition is changed at constant pressure. This simulation is available at: http://demonstrations.wolfram.com/LeverRuleAppliedToTheBenze...
Lecture 59 Play Video	Osmolarity Example (Bio) Covers the basics of calculating osmolarity.
Lecture 60 Play Video	Osmotic Shock Disruption (Bio) Uses osmotic shock as a method of disrupting (lysing) cells.
Lecture 61 Play Video	Ternary Phase Diagram Basics (Simulation) Uses a simulation to show how ternary phase diagrams are interpreted. This is for a single phase, three component system.
Lecture 62 Play Video	McCabe-Thiele: Stepping off Stages Demonstrates conceptually how to step off stages on a McCabe-Thiele diagram.