Flash Distillation In Chemical & Process Engineering

Learn How to Model and Operate Flash Distillation Units in Chemical Plants

What you'll learn

Design & Operation of Flash Distillation Units

Mass Transfer Principles

Material & Energy Balances for Flashing Systems

Flash Distillation Modeling & Simulation

Requirements

Material Balances

Energy Balances

Basic Physical Chemistry

Recommended - Mass Transfer Theory

Recommended - Transport Phenomena

Description

Introduction:Flash Distillation is one of the most important Mass Transfer Operations used extensively in the Chemical industry. It is also one of the most important processes to learn in Mass Transfer / Separation Process Technologies as it is a fundamental unit operation.Understanding the concept behind Flash Distillation, the vapor-liquid equilibrium and all other  mass transfer interaction will allow you to understand and model Flash Drums and Flashing Systems. Most of them can be used to "theoretically" model other unit operations such as: Distillation Columns,  Batch Distillator, Tray Columns and Packed column, etc…We will cover:REVIEW: Of Mass Transfer Basics (Equilibrium VLE Diagrams, Volatility, Raoult's Law, Azeotropes, etc..)Flash Distillation Theory - Concepts and PrinciplesApplication of Distillation in the IndustryEquipment for Flashing Systems such as Flash DrumsDesign & Operation of Flash DrumsMaterial and Energy Balances for flash systemsAdiabatic and Isothermal OperationAnimations and Software Simulation for Flash Distillation Systems (ASPEN PLUS/HYSYS)Theory + Solved Problem Approach:All theory is taught and backed with exercises, solved problems, and proposed problems for homework/individual study.At the end of the course:You will be able to understand mass transfer mechanism and processes behind Flash Distillation.You will be able to continue with Batch Distillation, Fractional Distillation, Continuous Distillation and further courses such as Multi-Component Distillation, Reactive Distillation and Azeotropic Distillation.About your instructor:I majored in Chemical Engineering with a minor in Industrial Engineering back in 2012.I worked as a Process Design/Operation Engineer in INEOS Koln, mostly on the petrochemical area relating to naphtha treating. There I designed and modeled several processes relating separation of isopentane/pentane mixtures, catalytic reactors and separation processes such as distillation columns, flash separation devices and transportation of tank-trucks of product.

Overview

Section 1: Introduction

Lecture 1 Welcome to the Course!

Lecture 2 Course Content

Lecture 3 Objectives & Goals

Lecture 4 Why Flash Distillation?

Lecture 5 General Reference: Books, Articles, Bibliography & Other

Lecture 6 Some Notes…

Lecture 7 Join the Groups!

Lecture 8 Doubts, Comment & Questions - Contact me!

Section 2: Mass Transfer Review

Lecture 9 Introduction to Section 2

Lecture 10 Review - Mass Transfer

Lecture 11 2.1 Ideal Solution & Gas, Equilibrium, Vapor & Partial Pressures, VLE

Lecture 12 Ideal Gas Law

Lecture 13 Ideal Solution

Lecture 14 Vapor Pressure

Lecture 15 Partial Pressure

Lecture 16 Patrial Pressure vs Vapor Pressure

Lecture 17 Task – Partial & Vapor Pressure

Lecture 18 What is Vapor Liquid Equilibrium for Pure substances

Lecture 19 Vapor Liquid Equilibrium for Binary Systems

Lecture 20 2.2 Volatility (Chemistry)

Lecture 21 Volatility (Chemistry)

Lecture 22 Task - Volatility of Substances

Lecture 23 Relative Volatility

Lecture 24 Special Case - Constant Relative Volatility

Lecture 25 K-Values

Lecture 26 Task – Calculate a K-Value

Lecture 27 2.3 Phase Diagrams (Txy, Pxy, XY)

Lecture 28 Phase Rule & Diagrams

Lecture 29 Task – Prove Phase Rule for VLE

Lecture 30 Binary Diagrams

Lecture 31 XY Diagrams

Lecture 32 Task - XY Diagram

Lecture 33 Bubble Point

Lecture 34 Dew Point

Lecture 35 T-XY Diagram

Lecture 36 Analysis of T-XY Diagram

Lecture 37 Task - Reading T-XY Diagram

Lecture 38 P-XY Diagrams

Lecture 39 Task - Reading P-XY Diagrams

Lecture 40 2.4 Ideal Solution – Ideal Gas: Raoult’s Law (Vapor-Liquid)

Lecture 41 Cases - Ideal Gas, Ideal Solution, Real Gas, Real Solution

Lecture 42 Case 1: Ideal Solution – Ideal Gas

Lecture 43 Raoult's Law

Lecture 44 Ex - Raoults Law Application

Lecture 45 Non-Ideal Solutions

Lecture 46 Henry’s Law

Lecture 47 Ex - Henrys Law for Solubility

Lecture 48 K-Values - Revisited

Lecture 49 Case 2: Real Solution – Ideal Gas

Lecture 50 Case 3: Ideal Solution – Real Gas

Lecture 51 Case 4: Real Solution – Real Gas

Lecture 52 Cases Conclusion

Lecture 53 2.5 Deviations: Azeotropes

Lecture 54 Deviations

Lecture 55 Azeotropes

Lecture 56 Miniumum boiling Azeotropes

Lecture 57 Maximum Boiling Azeotrope

Lecture 58 Task – Identify Azeotrope Type

Lecture 59 Introduction to Azeotropic Distillation

Lecture 60 2.6 Getting VLE Data on Aspen Plus

Lecture 61 What is Aspen Plus?

Lecture 62 Getting VLE Data from Aspen Plus

Lecture 63 Task - Graphing Txy Data with Binary Analysis Tools

Lecture 64 Getting VLE Data from NIST

Lecture 65 Task - Extracting Binary Data using NIST Database

Lecture 66 Section 2 Closure

Section 3: Flash Distillation

Lecture 67 Introduction to Section 3

Lecture 68 3.1 Process Technology Overview

Lecture 69 Flash Process Technology

Lecture 70 Flash Diagrams & Drums

Lecture 71 Task - Flash Drum Identification

Lecture 72 Task – Recognize horizontal Drum

Lecture 73 3.2 Flash Equipment

Lecture 74 Horizontal vs. Vertical Drums

Lecture 75 Typical Dimensions

Lecture 76 Hold-up Time

Lecture 77 Equipment & Other Auxiliaries

Lecture 78 The Mesh / Demister

Lecture 79 Nozzles

Lecture 80 Vortex Breakers

Lecture 81 Foam formation & deforming

Lecture 82 Straightening Vanes

Lecture 83 Baffles

Lecture 84 Control System

Lecture 85 Task – Identify Control System

Lecture 86 3.3 Flash Operation & Design Calculations

Lecture 87 Sequential Method

Lecture 88 Operation Lines in Separation Processes Technologies

Lecture 89 Flash Distillation - Introduction to Variables

Lecture 90 Operation Line of a Flash (FOL)

Lecture 91 Analysis of the Flash Operation Line - Increase in Vapor Fraction in Feed

Lecture 92 Animation! - Flash Distillation of a Constant Relative Volatility Mixture

Lecture 93 Worked Example - Flash Drum

Lecture 94 Animation! Construct an x-y Diagram for Flash Distillation

Lecture 95 Ex 1. Flash Distillation - 4 Cases of Vapor Fraction in Feed

Lecture 96 Simulation 01 - Ex 1 Flash Distillation Cases

Lecture 97 Ex 2. Partially Flashing an Alkane Mixture

Lecture 98 Ex. 3 Flashing a Vapor Liquid Mix

Lecture 99 Animation! - Adiabatic Flash Drum with Binary Liquid Feed

Lecture 100 Energy Balance on the Drum

Lecture 101 Animations! T-x-y and x-y Diagrams for Binary Vapor-Liquid Equilibrium (VLE)

Lecture 102 Ex. 1 Flash Drum, Heat-loads & Temperature

Lecture 103 Ex. 2 Flashing System + Enthalpies

Lecture 104 Simulation of Ex 2 - Flashing systems using Enthalpy Composition Diagrams

Lecture 105 Flash Drum Sizing

Lecture 106 Ex. 1 Flash Drum Sizing

Lecture 107 Flash Drum Sizing - Resources

Lecture 108 Task – Size a Horizontal Flash Drum using Resources

Lecture 109 3.4 Flash Cascades

Lecture 110 Flash Cascade - Intuitive Approach

Lecture 111 Analysis of Case 1 - Flash Cascades

Lecture 112 Simulation - Flash Cascade Case 1

Lecture 113 Animation! Flash Distillation Cascade for an Acetone-Chloroform Mixture

Lecture 114 Analysis of Case 2 - Flash Cascades

Lecture 115 Simulation - Case 2 - Flashing System with Recycling

Lecture 116 Animation! Flash Distillation Cascade in a Constant Relative Volatility Mixture

Lecture 117 Section 3 - Conclusion

Section 4: Multicomponent Flashing

Lecture 118 Introduction to Section 4

Lecture 119 4.1 Multicomponent VLE

Lecture 120 Multicomponent VLE

Lecture 121 Revisiting K-Values (Alkanes)

Lecture 122 Animation! K-value of Several Hydrocarbons versus Temperature and Pressure

Lecture 123 K-Value Chart - DePriester

Lecture 124 Animation! K-value using DePriester Chart - Temperature and Pressure

Lecture 125 Dew & Bubble Point Calculation

Lecture 126 Bubble Point Calculation

Lecture 127 Worked Example - Bubble Point Calculation

Lecture 128 Ex 1. Bubble Point Calculation

Lecture 129 Dew Point Calculation

Lecture 130 Worked Example - Dew Point Calculation

Lecture 131 Task – Dew Point Calculation

Lecture 132 Simulation - Bubble & Dew Point of Several Mixtures

Lecture 133 4.2 Multicomponent Flash Distillation

Lecture 134 Derivation of Rachford-Rice Equation

Lecture 135 Rachford-Rice Procedure

Lecture 136 Worked Example - Rachford-Rice Equation for BTX

Lecture 137 Ex 1. Rachford-Rice Flashing

Lecture 138 Ex 2. Rachford-Rice Flashing

Lecture 139 Animation! Flash Distillation of a Mixture of Four Hydrocarbons

Lecture 140 Simulation - Multicomponent Flashing of Ex 1.

Lecture 141 Section 4 - Closure

Section 5: Conclusion

Lecture 142 Closure

Lecture 143 Course Wrap-Up

Lecture 144 Bonus Lecture!

Engineers,Chemical Engineers,Engineering Students,Process engineers,Petroleum Engineers,Petrochemical Engineers