introduction to aspen plus-2012
DESCRIPTION
Introducción a Aspen Plus 2012TRANSCRIPT
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Introduction to Aspen PlusShort Courses on Computer Applications for ChE Students
Speaker: Yi-Chang Wu ( 吳義章 )[email protected]
PSE LaboratoryDepartment of Chemical Engineering
Nation Taiwan University
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• Extractive Distillation
Extractive distillation column
Entrainer recovery column
F2
XIPA=0.999
IPA-water feed (FF)
Entrainer feed (FE)
Entrainer recycle
Entrainer makeup
D2
B2
NFE
NFF
NF2
NT = 41NFE = 7NFF = 35
NT = 24NF2 = 9
XWater=0.999D2
P = 3 atm T = 25oC F = 100 kmol/hr X IPA =0.5 X WATER =0.5
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What is Aspen PlusWhat is Aspen Plus
• Aspen Plus is a market-leading process modeling tool for conceptual design, optimization, and performance monitoring for the chemical, polymer, specialty chemical, metals and minerals, and coal power industries.
3Ref: http://www.aspentech.com/products/aspen-plus.cfm
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What Aspen Plus providesWhat Aspen Plus provides• Physical Property Models
– World’s largest database of pure component and phase equilibrium data for conventional chemicals, electrolytes, solids, and polymers
– Regularly updated with data from U. S. National Institute of Standards and Technology (NIST)
• Comprehensive Library of Unit Operation Models– Addresses a wide range of solid, liquid, and gas processing equipment– Extends steady-state simulation to dynamic simulation for safety and
controllability studies, sizing relief valves, and optimizing transition, startup, and shutdown policies
– Enables you build your own libraries using Aspen Custom Modeler or programming languages (User-defined models)
Ref: Aspen Plus® Product Brochure4
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More DetailedMore Detailed• Properties analysis
– Properties of pure component and mixtures (Enthalpy, density, viscosity, heat capacity,…etc)
– Phase equilibrium (VLE, VLLE, azeotrope calculation…etc)– Parameters estimation for properties models (UNIFAC method
for binary parameters, Joback method for boiling points…etc)– Data regression from experimental deta
• Process simulation– pump, compressor, valve, tank, heat exchanger, CSTR, PFR,
distillation column, extraction column, absorber, filter, crystallizer…etc
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What course Aspen Plus What course Aspen Plus can be employed forcan be employed for
• MASS AND ENERGY BALANCES• PHYSICAL CHEMISTRY• CHEMICAL ENGINEERING THERMODYNAMICS • CHEMICAL REACTION ENGINEERING • UNIT OPERATIONS• PROCESS DESIGN • PROCESS CONTROL
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Lesson ObjectivesLesson Objectives
• Familiar with the interface of Aspen Plus• Learn how to use properties analysis• Learn how to setup a basic process simulation
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Problem Formulation 1: Calculation Problem Formulation 1: Calculation the mixing properties of two stream the mixing properties of two stream
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Mixer Pump
1 2 3 4Mole Flow kmol/hr
WATER 10 0 ? ? BUOH 0 9 ? ? BUAC 0 6 ? ?
Total Flow kmol/hr 10 15 ? ?Temperature C 50 80 ? ?Pressure bar 1 1 1 10
Enthalpy kcal/mol ? ? ? ?Entropy cal/mol-K ? ? ? ?Density kmol/cum ? ? ? ?
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Mass Balance
Energy Balance Enthalpy Entropy…
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Problem Formulation 2: Problem Formulation 2: Flash SeparationFlash Separation
Saturated Feed P=1atm F=100 kmol/hr zwater=0.5 zHAc=0.5
T=105 CP=1atm
What are flowrates and compositions of the two outlets?
0.0 0.2 0.4 0.6 0.8 1.0100
105
110
115
120
T (o C
)x
Water and y
Water
T-x T-y
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Problem Formulation 3: Dehydration of Problem Formulation 3: Dehydration of Acetic Acid by Distillation Column Acetic Acid by Distillation Column
0.0 0.2 0.4 0.6 0.8 1.00.0
0.2
0.4
0.6
0.8
1.0
y Wat
er
xWater
1
2
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Saturated Feed P=1.2atm F=100 kmol/hr zwater=0.5 zHAc=0.5
xwater=0.99
xHAc=0.9940
20Water
Acetic Acid
Water
Acetic Acid
Reflux ratio ?
Duty ?
(Optional)(Optional)
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OutlineOutline
• Startup in Aspen Plus (Basic Input) (45 min)– User Interface– Basic Input: Setup, Components, Properties.
• Properties Analysis (1 hour)– Pure Component– Mixtures (phase equilibrium)
• Running Simulation (1 hour)– Blocks (Unit Operations)– Streams (flow streams)– Results
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Introduction to Aspen Plus – Part 1Startup in Aspen Plus
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Start with Aspen Plus
Aspen Plus User Interface
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Aspen Plus StartupAspen Plus Startup
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Interface of Aspen PlusInterface of Aspen Plus
Process Flowsheet Windows
Model Library (View| Model Library )
Stream
HelpSetupComponentsPropertiesStreamsBlocksData BrowserNext
Check ResultStopReinitializeStepStartControl Panel
Process Flowsheet Windows
Model Library (View| Model Library )
Status message15
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More InformationMore Information
Help for Commands for Controlling Simulations 16
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Data BrowserData Browser
• The Data Browser is a sheet and form viewer with a hierarchical tree view of the available simulation input, results, and objects that have been defined
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Basic InputBasic Input
• The minimum required inputs to run a simulation are:– Setup– Components– Properties– Streams– Blocks
Property Analysis
Process Simulation
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Setup – SpecificationSetup – SpecificationRun Type
Input mode
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Components – SpecificationComponents – Specification
Input componentswith Component name or Formula
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Input componentsInput components
Remark: If available, are
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SpecificationSpecification
To do this Click this buttonFind components in the databanks FindDefine a custom component that is not in a databank
User Defined
Generate electrolyte components and reactions from components you entered
Elec Wizard
Reorder the components you have specified
Reorder
Review databank data for components you have specified (Retrieved physical property parameters from databanks.)
Review
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Find ComponentsFind Components
Click “Find”
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Find Components (cont’d)Find Components (cont’d)
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PropertiesProperties
Process type(narrow the number ofmethods available)
Base method: IDEAL, NRTL, UNIQAC, UNIFAC…
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Property Method Selection – AssistantProperty Method Selection – Assistant
Interactive help in choosing a property method
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Specify Component typeChemical Systems
Is the system at high pressure?(NO)
Two liquid phases
Assistant WizardAssistant Wizard
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Property Method Choice
Polar orT < Tci
No
Yes
Property Methods Decision Diagram
Electrolyte
No Pseudo Components
Pr < 0.1 & T < Tci
No
Yes
ELECNRTL
Yes
PENG-ROBPR-BM
LK-PLOCKRK-SOAVE
RKS-BM
No High Pressure?
CHAO-SEAGRAYSON
BK10
BK10IDEAL
Yes
No
Interaction ParametersAvailable?
Interaction ParametersAvailable?
Yes
No
PSRKRKSMHV2
SR-POLARPRWS
RKSWSPRMHV2
RKSMHV2
Liq-Liq
Liq-Liq
Yes
No
Yes
No
NRTLUNIQAC
etc.
WILSONNRTL
UNIQACetc.
UNIF-LL
UNIFACUNIF-LBYUNIF-DMD
Yes
No
Yes
No
Vapor-phase Association?
WILSON, WILS-RK, WILS-LR, WILS-GLR, NRTL, NRTL-RK, NRTL-2,
UNIQUAC, UNIQ-RK, UNIQ-2, UNIFAC, UNIF-LL, UNIF-LBY, UNIF-DMB
WILS-HF
WILS-NTH, WILS-HOC, NRTL-NTH, NRTL-HOC, UNIQ-NTJ, UNIQ-HOC,
UNIF-HOC
Degree of Polymerization
No
Yes
Hexamers
Dimers
A
A
A
A
A
Reference: http://www.et.byu.edu/groups/uolab/files/aspentech/
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Thermodynamic Model – NRTLThermodynamic Model – NRTL
NRTL
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NRTL – Binary ParametersNRTL – Binary Parameters
Click “NRTL” and then built-in binary parameters appear automatically if available.
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Access Properties Models and Access Properties Models and ParametersParameters
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Review Databank Data
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Review Databank DataReview Databank Data
Description of each parameter
Including:Ideal gas heat of formation at 298.15 KIdeal gas Gibbs free energy of formation at 298.15 KHeat of vaporization at TBNormal boiling pointStandard liquid volume at 60°F….
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Pure Component Pure Component Temperature-Dependent PropertiesTemperature-Dependent Properties
CPIGDP-1 ideal gas heat capacity
CPSDIP-1 Solid heat capacity
DNLDIP-1 Liquid density
DHVLDP-1 Heat of vaporization
PLXANT-1 Extended Antoine Equation
MULDIP Liquid viscosity
KLDIP Liquid thermal conductivity
SIGDIP Liquid surface tension
UFGRP UNIFAC functional group
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Example: PLXANT-1 Example: PLXANT-1 (Extended Antoine Equation)(Extended Antoine Equation)
?
Corresponding Model
Click “ ?” and then click where you don’t know ↖
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Example: CPIGDP-1 Example: CPIGDP-1 (Ideal Gas Heat Capacity Equation)(Ideal Gas Heat Capacity Equation)
?
Corresponding Model
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SummarySummary
So far, we have finished the basic settings including setup, components, and properties.This is enough to perform properties analysis.
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File Formats in Aspen PlusFile Formats in Aspen Plus
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File Type Extension Format DescriptionDocument *.apw Binary File containing simulation input and results and
intermediate convergence information
Backup *.bkp ASCII Archive file containing simulation input andresults
History *.his Text Detailed calculation history and diagnosticmessages
Problem Description
*.appdf Binary File containing arrays and intermediateconvergence information used in the simulationcalculations
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Introduction to Aspen Plus – Part 2Properties Analysis in Aspen Plus
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Overview of Property AnalysisOverview of Property Analysis
Use this form To generate
Pure Tables and plots of pure component properties as a function of temperature and pressure
Binary Txy, Pxy, or Gibbs energy of mixing curves for a binary system
Residue Residue curve maps
Ternary Ternary maps showing phase envelope, tie lines, and azeotropes of ternary systems
Azeotrope This feature locates all the azeotropes that exist among a specified set of components.
Ternary MapsTernary diagrams in Aspen Distillation Synthesis feature: Azeotropes, Distillation boundary, Residue curves or distillation curves, Isovolatility curves, Tie lines, Vapor curve, Boiling point
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RemindingReminding
• When you start properties analysis, you MUST specify components , properties model, and corresponding model parameters. (Refer to Part I)
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Properties Analysis – Pure Component Properties Analysis – Pure Component
Use this form To generate
Pure Tables and plots of pure component properties as a function of temperature and pressure
Binary Txy, Pxy, or Gibbs energy of mixing curves for a binary system
Residue Residue curve maps
Ternary Ternary maps showing phase envelope, tie lines, and azeotropes of ternary systems
Azeotrope This feature locates all the azeotropes that exist among a specified set of components.
Ternary MapsTernary diagrams in Aspen Distillation Synthesis feature: Azeotropes, Distillation boundary, Residue curves or distillation curves, Isovolatility curves, Tie lines, Vapor curve, Boiling point
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Properties Analysis – Pure Component Properties Analysis – Pure Component
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Available PropertiesAvailable PropertiesProperty (thermodynamic) Property (transport)
Availability Free energy Thermal conductivityConstant pressure
heat capacity Enthalpy Surface tension
Heat capacity ratio Fugacity coefficient ViscosityConstant volume heat
capacityFugacity coefficient pressure correction
Free energy departure Vapor pressure Free energy departure
pressure correction Density
Enthalpy departure EntropyEnthalpy departure pressure correction Volume
Enthalpy of vaporization Sonic velocity
Entropy departure 43
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Example1: CP (Heat Capacity)Example1: CP (Heat Capacity)
1. Select property (CP)
2. Select phase
3. Select component
4. Specify range of temperature
5. Specify pressure
6. Select property method
7. click Go to generate the results
Add “N-butyl-acetate”
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Example1: Calculation Results of CPExample1: Calculation Results of CP
Data results 45
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Example2: H (Enthalpy)Example2: H (Enthalpy)
1. Select property (H)
2. Select phase
3. Select component
4. Specify range of temperature
5. Specify pressure
6. Select property method
7. click Go to generate the results46
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Example: Calculation Results of HExample: Calculation Results of H
Data results
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Properties Analysis – Binary ComponentsProperties Analysis – Binary Components
Use this form To generate
Pure Tables and plots of pure component properties as a function of temperature and pressure
Binary Txy, Pxy, or Gibbs energy of mixing curves for a binary system
Residue Residue curve maps
Ternary Ternary maps showing phase envelope, tie lines, and azeotropes of ternary systems
Azeotrope This feature locates all the azeotropes that exist among a specified set of components.
Ternary MapsTernary diagrams in Aspen Distillation Synthesis feature: Azeotropes, Distillation boundary, Residue curves or distillation curves, Isovolatility curves, Tie lines, Vapor curve, Boiling point
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Properties Analysis – Binary ComponentsProperties Analysis – Binary Components
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Binary Component Properties AnalysisBinary Component Properties Analysis
Use this Analysis type To generate
Txy Temperature-compositions diagram at constant pressure
Pxy Pressure-compositions diagram at constant temperature
Gibbs energy of mixing
Gibbs energy of mixing diagram as a function of liquid compositions. The Aspen Physical Property System uses this diagram to determine whether the binary system will form two liquid phases at a given temperature and pressure.
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Example: T-XYExample: T-XY1. Select analysis type (Txy) 2. Select phase (VLE, VLLE)
2. Select two component
4. Specify composition range
5. Specify pressure
6. Select property method
3. Select compositions basis
7. click Go to generate the results
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Example: calculation result of T-XYExample: calculation result of T-XY
Data results
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Example: Generate XY plotExample: Generate XY plot
Click “plot wizard” to generate XY plot
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Example: Generate XY plot (cont’d)Example: Generate XY plot (cont’d)
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Property Analysis – GenericProperty Analysis – GenericUse this form To generate
Pure Tables and plots of pure component properties as a function of temperature and pressure
Binary Txy, Pxy, or Gibbs energy of mixing curves for a binary system
Residue Residue curve maps
Ternary Ternary maps showing phase envelope, tie lines, and azeotropes of ternary systems
Azeotrope This feature locates all the azeotropes that exist among a specified set of components.
Ternary MapsTernary diagrams in Aspen Distillation Synthesis feature: Azeotropes, Distillation boundary, Residue curves or distillation curves, Isovolatility curves, Tie lines, Vapor curve, Boiling point
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Properties Analysis – TernaryProperties Analysis – Ternary
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Ternary MapTernary Map
4. Select phase (VLE, LLE)1. Select three component
5. Specify pressure
3. Select property method
2. Specify number of tie line
7. click Go to generate the results
6. Specify temperature (if LLE is slected)
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Calculation Result of Ternary Map (LLE)Calculation Result of Ternary Map (LLE)
Data results
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Property Analysis – Conceptual DesignProperty Analysis – Conceptual Design
Use this form To generate
Pure Tables and plots of pure component properties as a function of temperature and pressure
Binary Txy, Pxy, or Gibbs energy of mixing curves for a binary system
Residue Residue curve maps
Ternary Ternary maps showing phase envelope, tie lines, and azeotropes of ternary systems
Azeotrope This feature locates all the azeotropes that exist among a specified set of components.
Ternary MapsTernary diagrams in Aspen Distillation Synthesis feature: Azeotropes, Distillation boundary, Residue curves or distillation curves, Isovolatility curves, Tie lines, Vapor curve, Boiling point
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(Optional)
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Conceptual DesignConceptual Design
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Azeotrope AnalysisAzeotrope Analysis
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Azeotrope AnalysisAzeotrope Analysis
4. Select phase (VLE, LLE)
1. Select components (at least two) 2. Specify pressure
3. Select property method
5. Select report Unit
6. click Report to generate the results
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Error MessageError Message
Close analysis input dialog box (pure or binary analysis)
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Azeotrope Analysis ReportAzeotrope Analysis Report
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Ternary MapsTernary Maps
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Ternary MapsTernary Maps
4. Select phase (VLE, LLE)1. Select three components
2. Specify pressure
3. Select property method
5. Select report Unit
6. Specify temperature of LLE (If liquid-liquid envelope is selected)
6. Click Ternary Plot to generate the results
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Ternary MapsTernary Maps
Ternary Plot Toolbar:Add Tie line, Curve, Marker…
Change pressure or temperature
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Introduction to Aspen Plus – Part 3 Running Simulation in Aspen Plus
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Example 1: Calculate the mixing Example 1: Calculate the mixing properties of two stream properties of two stream
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Mixer Pump
1 2 3 4Mole Flow kmol/hr
WATER 10 0 ? ? BUOH 0 9 ? ? BUAC 0 6 ? ?
Total Flow kmol/hr 10 15 ? ?Temperature C 50 80 ? ?Pressure bar 1 1 1 10
Enthalpy kcal/mol ? ? ? ?Entropy cal/mol-K ? ? ? ?Density kmol/cum ? ? ? ?
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Setup – SpecificationSetup – Specification
Select Flowsheet
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Reveal Model LibraryReveal Model Library
View|| Model Libraryor press F10
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Adding a MixerAdding a Mixer
Click “one of icons” and then click again on the flowsheet window
Remark: The shape of the icons are meaningless
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Adding Material StreamsAdding Material Streams
Click “Materials” and then click again on the flowsheet window
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Adding Material Streams (cont’d)Adding Material Streams (cont’d)
When clicking the mouse on the flowsheet window,arrows (blue and red) appear.
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Adding Material Streams (cont’d)Adding Material Streams (cont’d)
When moving the mouse on the arrows, some description appears.
Blue arrow: Water decant for Free water of dirty water.
Red arrow(Left) Feed (Required; one ore more if mixing material streams)
Red arrow(Right): Product (Required; if mixing material streams)
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Adding Material Streams (cont’d)Adding Material Streams (cont’d)
After selecting “Material Streams”, click and pull a stream line.Repeat it three times to generate three stream lines.
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Reconnecting Material Streams Reconnecting Material Streams (Feed Stream)(Feed Stream)
Right Click on the stream and select Reconnect Destination
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Reconnecting Material Streams Reconnecting Material Streams (Product Stream)(Product Stream)
Right Click on the stream and select Reconnect Source
B1
1
2
3
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Specifying Feed ConditionSpecifying Feed Condition
Right Click on the stream and select Input
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Specifying Feed ConditionSpecifying Feed Condition
You must specify two of the following conditions:TemperaturePressureVapor fraction
You can enter stream composition in terms of component flows, fractions, or concentrations.
If you specify component fractions, you must specify the total mole, mass, or standard liquid volume flow.
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Specifying Feed Condition (cont’d)Specifying Feed Condition (cont’d)
1 2
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Specifying Input of MixerSpecifying Input of Mixer
Right Click on the block and select Input
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Specifying Input of Mixer (cont’d)Specifying Input of Mixer (cont’d)
Specify Pressure and valid phase
The corresponding description about this blank:Outlet pressure if value > 0Pressure drop if value 0≦
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Run SimulationRun Simulation
Click ► to run the simulation
Check “simulation status”“Required Input Complete” means the input is ready to run simualtion
Run Start or continue calculations
Step Step through the flowsheet one block at a time
Stop Pause simulation calculations
Reinitialize Purge simulation results
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Status of Simulation Results Status of Simulation Results
Message Means
Results available The run has completed normally, and results are present.
Results with warnings
Results for the run are present. Warning messages were generated during the calculations. View the Control Panel or History for messages.
Results with errors Results for the run are present. Error messages were generated during the calculations. View the Control Panel or History for messages.
Input Changed
Results for the run are present, but you have changed the input since the results were generated. The results may be inconsistent with the current input.
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Stream ResultsStream Results
Right Click on the block and select Stream Results
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1 2 3Substream: MIXED Mole Flow kmol/hr
WATER 10 0 10 BUOH 0 9 9 BUAC 0 6 6
Total Flow kmol/hr 10 15 25Total Flow kg/hr 180.1528 1364.066 1544.218
Total Flow cum/hr 0.18582 1.74021 1.870509Temperature C 50 80 70.08758
Pressure bar 2 1 1Vapor Frac 0 0 0Liquid Frac 1 1 1Solid Frac 0 0 0
Enthalpy kcal/mol -67.81 -94.3726 -83.7476Enthalpy kcal/kg -3764.03 -1037.77 -1355.82Enthalpy Gcal/hr -0.6781 -1.41559 -2.09369
Entropy cal/mol-K -37.5007 -134.947 -95.6176Entropy cal/gm-K -2.0816 -1.48395 -1.54799Density kmol/cum 53.81564 8.619647 13.36534
Density kg/cum 969.5038 783.851 825.5604Average MW 18.01528 90.93771 61.76874
Liq Vol 60F cum/hr 0.1805 1.617386 1.797886
Pull down the list and select “Full” to show more properties results.
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Enthalpy and Entropy
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Change Units of Calculation ResultsChange Units of Calculation Results
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Setup – Defining Your Own Units Set Setup – Defining Your Own Units Set
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Setup – Report OptionsSetup – Report Options
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Stream Results with Format of Stream Results with Format of Mole FractionMole Fraction
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Add Pump BlockAdd Pump Block
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Add A Material StreamAdd A Material Stream
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Connect StreamsConnect Streams
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Pump – Specification Pump – Specification
2. Specify pump outlet specification(pressure, power)
1. Select “Pump” or “turbine”
3. Efficiencies (Default: 1)
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Run SimulationRun Simulation
Click ► to generate the results
Check “simulation status”“Required Input Complete”
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Block Results (Pump)Block Results (Pump)
Right Click on the block and select Results
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Streams ResultsStreams Results
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Calculation Results Calculation Results (Mass and Energy Balances)(Mass and Energy Balances)
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Mixer Pump
1 2 3 4Mole Flow kmol/hr
WATER 10 0 10 10 BUOH 0 9 9 9 BUAC 0 6 6 6
Total Flow kmol/hr 10 15 25 25Temperature C 50 80 70.09 71.20Pressure bar 1 1 1 10
Enthalpy kcal/mol -67.81 -94.37 -83.75 -83.69 Entropy cal/mol-K -37.50 -134.95 -95.62 -95.46 Density kmol/cum 969.50 783.85 825.56 824.29
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ExerciseExercise12 4
6
Mixer Pump3
5
1 2 3 4 5 6Mole Flow kmol/hr
Water 10 0 0 ? ? ? Ethanol 0 5 0 ? ? ?
Methanol 0 0 15 ? ? ?Total Flow kmol/hr 10 15 15 ? ? ?
Temperature C 50 70 40 ? ? ?Pressure bar 1 1 1 1 4 2
Enthalpy kcal/mol ? ? ? ? ? ?Entropy cal/mol-K ? ? ? ? ? ?Density kmol/cum ? ? ? ? ? ?
101Please use Peng-Robinson EOS to solve this problem.
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Example 2: Flash SeparationExample 2: Flash Separation
Saturated Feed P=1atm F=100 kmol/hr zwater=0.5 zHAc=0.5
T=105 CP=1atm
What are flowrates and compositions of the two outlets?
0.0 0.2 0.4 0.6 0.8 1.0100
105
110
115
120
T (o C
)x
Water and y
Water
T-x T-y
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Input ComponentsInput Components
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Thermodynamic Model: NRTL-HOCThermodynamic Model: NRTL-HOC
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Check Binary ParametersCheck Binary Parameters
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Association parameters of HOCAssociation parameters of HOC
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Binary Parameters of NRTLBinary Parameters of NRTL
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Binary AnalysisBinary Analysis
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T-xy plotT-xy plot
1. Select analysis type (Txy) 2. Select phase (VLE, VLLE)
2. Select two component
4. Specify composition range
5. Specify pressure
6. Select property method3. Select compositions basis
7. click Go to generate the results
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Calculation Result of T-xyCalculation Result of T-xy
Data results
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Generate xy plotGenerate xy plot
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Generate xy plot (cont’d)Generate xy plot (cont’d)
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Flash SeparationFlash Separation
Saturated Feed P=1atm F=100 kmol/hr zwater=0.5 zHAc=0.5
T=105 CP=1atm
What are flowrates and compositions of the two outlets?
0.0 0.2 0.4 0.6 0.8 1.0100
105
110
115
120
T (o C
)x
Water and y
Water
T-x T-y
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Add Block: Flash2Add Block: Flash2
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Add Material StreamAdd Material Stream
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Specify Feed ConditionSpecify Feed Condition
Saturated Feed (Vapor fraction=0) P=1atm F=100 kmol/hr zwater=0.5 zHAc=0.5
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Block Input: Flash2Block Input: Flash2
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Flash2: SpecificationFlash2: Specification
T=105 CP=1atm
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Required Input IncompleteRequired Input Incomplete
Close binary analysis window
Connot click ► to run simulation
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Required Input CompleteRequired Input Complete
Click ► to run simulation
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Stream ResultsStream Results
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Stream Results (cont’d)Stream Results (cont’d)
Saturated Feed P=1atm F=100 kmol/hr zwater=0.5 zHAc=0.5
T=105 CP=1atm
42.658 kmol/hr zwater=0.501 zHAc=0.409
57.342 kmol/hr zwater=0.432 zHAc=0.568
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1
2
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Saturated Feed P=1.2atm F=100 kmol/hr zwater=0.5 zHAc=0.5
xwater=0.99
xHAc=0.9940
20
Distillation SeparationDistillation Separation
• There are two degrees of freedom to manipulate distillate composition and bottoms composition to manipulate the distillate and bottoms compositions.
• If the feed condition and the number of stages are given, how much of RR and QR are required to achieve the specification.
RR ?
QR ?
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Add Block: RadfracAdd Block: Radfrac
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Add Material StreamAdd Material Stream
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Connect Material StreamConnect Material Stream
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Specify Feed ConditionSpecify Feed Condition
Saturated Feed (Vapor fraction=0) P=1.2atm F=100 kmol/hr zwater=0.5 zHAc=0.5
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Block Input: RadfracBlock Input: Radfrac
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Radfrac: ConfigurationRadfrac: Configuration
1
2
39
Saturated Feed P=1.2atm F=100 kmol/hr zwater=0.5 zHAc=0.5
xwater=0.99
xHAc=0.9940
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Radfrac: Streams (Feed Location)Radfrac: Streams (Feed Location)
1
2
39
Saturated Feed P=1.2atm F=100 kmol/hr zwater=0.5 zHAc=0.5
xwater=0.99
xHAc=0.9940
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Radfrac: Column PressureRadfrac: Column Pressure
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Run SimulationRun Simulation
Click ► to run simulation
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Check Convergence StatusCheck Convergence Status
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Stream ResultsStream Results
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D B
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Change Reflux RatioChange Reflux Ratio
Click ► to run simulation
Increase RR from 2 to 2.5
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D B
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Again…Again…
You can iterate RR until the specification is achieved.
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Smarter WaySmarter Way
Aspen Plus provides a convenient function (Design Specs/Vary) which can iterate operating variables to meet the specification.
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Add New Design SpecsAdd New Design Specs
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Design Specs: SpecificationDesign Specs: Specification
Input current mole purity first
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Design Specs: ComponentsDesign Specs: Components
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Design Specs: Feed/Product StreamsDesign Specs: Feed/Product Streams
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Add New VeryAdd New Very
![Page 145: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/145.jpg)
Very: SpecificationsVery: Specifications
Not all variables cane be selected.In this case, only reflux ratio and reboiler duty can be used.
Specify the range of the adjusted variable
![Page 146: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/146.jpg)
Selection of Adjusted VariablesSelection of Adjusted Variables
The options of adjusted variables must correspond to the operating specification.
![Page 147: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/147.jpg)
Run SimulationRun Simulation
Click ► to run simulation
![Page 148: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/148.jpg)
Check Convergence StatusCheck Convergence Status
![Page 149: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/149.jpg)
Change Target of Mole PurityChange Target of Mole Purity
Click ► to run simulation
Increase Target from 0.95229424 to 0.99
![Page 150: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/150.jpg)
Check Convergence StatusCheck Convergence Status
![Page 151: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/151.jpg)
D B
![Page 152: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/152.jpg)
Column Performance SummaryColumn Performance Summary
![Page 153: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/153.jpg)
Summary of CondenserSummary of Condenser
Include condenser duty, distillate rate, reflux rate, reflux ratio
![Page 154: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/154.jpg)
Summary of ReboilerSummary of Reboiler
Include reboiler duty, bottoms rate, boilup rate, boilup ratio
![Page 155: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/155.jpg)
Column Profile: TPFQColumn Profile: TPFQ
![Page 156: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/156.jpg)
Column Profile: Vapor CompositionColumn Profile: Vapor Composition
![Page 157: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/157.jpg)
Column Profile: Liquid CompositionColumn Profile: Liquid Composition
![Page 158: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/158.jpg)
Plot Wizard for Column ProfilePlot Wizard for Column Profile
![Page 159: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/159.jpg)
Plot Wizard for Column Profile (cont’d)Plot Wizard for Column Profile (cont’d)
After entering the block, “Plot” appears.
![Page 160: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/160.jpg)
Plot WizardPlot Wizard
![Page 161: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/161.jpg)
Plot TypesPlot Types
![Page 162: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/162.jpg)
Steps for Composition PlotSteps for Composition Plot
![Page 163: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/163.jpg)
Composition ProfilesComposition Profiles
![Page 164: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/164.jpg)
Temperature ProfilesTemperature Profiles
![Page 165: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/165.jpg)
Examples:
1.IPA-Water-DMSOIsopropyl Alcohol
WaterDimethyl Sulfoxide
INTRODUCTION TO ASPEN PLUSINTRODUCTION TO ASPEN PLUSMore Complex SystemMore Complex System
![Page 166: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/166.jpg)
INTERFACE OF ASPEN PLUS
![Page 167: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/167.jpg)
COMPONENTS – SPECIFICATION
Input componentswith Component name or Formula
167
Click “Find”
![Page 168: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/168.jpg)
RENAME COMPONENTS IDRENAME COMPONENTS ID
168
Isopropyl AlcoholWater
Dimethyl Sulfoxide
![Page 169: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/169.jpg)
Thermodynamic Model – NRTLThermodynamic Model – NRTL
NRTL
169
![Page 170: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/170.jpg)
NRTL – Binary ParametersNRTL – Binary Parameters
Click “NRTL” and then built-in binary parameters appear automatically if available.
170
![Page 171: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/171.jpg)
NRTL – Binary ParametersNRTL – Binary Parameters
171
![Page 172: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/172.jpg)
NRTL – Binary Parameters-USERNRTL – Binary Parameters-USER
172
Comp,
iIPA IPA H2O
Comp,
jH2O DMSO DMSO
aij 0 0 -1.2449
aji 0 0 1.7524
bij 185.4 115.2787 586.801
bji 777.3 -25.0123 -1130.215
cij 0.50 0.3 0.30
![Page 173: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/173.jpg)
Ternary Maps
![Page 174: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/174.jpg)
Ternary MapsTernary Maps
4. Select phase (VLE, LLE)
1. Select three components
2. Specify pressure
3. Select property method
5. Select report Unit
6. Click Ternary Plot to generate the results
![Page 175: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/175.jpg)
Ternary MapsTernary Maps
Ternary Plot Toolbar:Add Tie line, Curve,
Marker…
Change pressure
![Page 176: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/176.jpg)
Entrainer / Azeotrope Feed Ratio
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Rel
ativ
e V
olat
ility
(IP
A/H
2O)
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
DMSO
How to finish the relative volatility curve IPA – Water -DMSO System
![Page 177: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/177.jpg)
ADD BLOCK: FLASH2
![Page 178: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/178.jpg)
ADD MATERIAL STREAM
![Page 179: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/179.jpg)
ADD MATERIAL STREAM
![Page 180: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/180.jpg)
ADD MATERIAL STREAM
![Page 181: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/181.jpg)
SPECIFY FEED CONDITION
Saturated Liquid Feed (Vapor fraction=0)
P=1 atm
F=10 kmol/hr zIPA=0.6932
zWATER=0.3068
Saturated Liquid Feed (Vapor fraction=0)
P=1 atm
F=10 kmol/hr zDMSO=1
![Page 182: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/182.jpg)
BLOCK INPUT : FLASH2
Click ► to run simulation
![Page 183: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/183.jpg)
LV
CHECK STREAMS RESULTCHECK STREAMS RESULT
2 2
1
/ 0.861/ 0.346 3.23/ 0.118 / 0.153
IPA IPA
H O H O
Entrainer feedwhenAzeotrope feed
y xy x
![Page 184: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/184.jpg)
A-F(kmol/h)
E-F(kmol/h) (A-F)/(E-F) α
10 2.5 0.25 1.8
10 5 0.5 2.43
10 7.5 0.75 2.9
10 10 1 3.23
10 12.5 1.25 3.5
10 15 1.5 3.7
10 17.5 1.75 3.86
10 20 2 3.98
10 22.5 2.25 4.08
10 25 2.5 4.16
10 27.5 2.75 4.22
10 30 3 4.28
Entrainer / Azeotrope Feed Ratio
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Rel
ativ
e V
olat
ility
(IP
A/H
2O)
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
DMSO
Finish the relative volatility curve IPA – Water -DMSO System
![Page 185: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/185.jpg)
Introduction to Aspen PlusIntroduction to Aspen Plus• Extractive Distillation
Extractive distillation column
Entrainer recovery column
F2
XIPA=0.999
IPA-water feed (FF)
Entrainer feed (FE)
Entrainer recycle
Entrainer makeup
D2
B2
NFE
NFF
NF2
NT = 41NFE = 7NFF = 35
NT = 24NF2 = 9
XWater=0.999D2
P = 3 atm T = 25oC F = 100 kmol/hr X IPA =0.5 X WATER =0.5
![Page 186: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/186.jpg)
Aspen Plus Startup
![Page 187: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/187.jpg)
INTERFACE OF ASPEN PLUS
![Page 188: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/188.jpg)
SETUP – SPECIFICATION
Run Type
Input mode
188
![Page 189: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/189.jpg)
Add Units-Sets
![Page 190: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/190.jpg)
Add Units-Sets
![Page 191: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/191.jpg)
REPORT OPTIONS
![Page 192: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/192.jpg)
COMPONENTS – SPECIFICATION
Input componentswith Component name or Formula
192
Click “Find”
![Page 193: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/193.jpg)
RENAME COMPONENTS IDRENAME COMPONENTS ID
193
![Page 194: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/194.jpg)
Thermodynamic Model – NRTLThermodynamic Model – NRTL
NRTL
194
![Page 195: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/195.jpg)
NRTL – Binary ParametersNRTL – Binary Parameters
Click “NRTL” and then built-in binary parameters appear automatically if available.
195
![Page 196: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/196.jpg)
NRTL – Binary ParametersNRTL – Binary Parameters
196
![Page 197: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/197.jpg)
NRTL – Binary Parameters-USERNRTL – Binary Parameters-USER
197
Comp,
iIPA IPA H2O
Comp,
jH2O DMSO DMSO
aij 0 0 -1.2449
aji 0 0 1.7524
bij 185.4 115.2787 586.801
bji 777.3 -25.0123 -1130.215
cij 0.50 0.3 0.30
![Page 198: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/198.jpg)
ADD BLOCK: RADFRAC
![Page 199: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/199.jpg)
ADD BLOCK: MIXERS
![Page 200: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/200.jpg)
ADD MATERIAL STREAM
![Page 201: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/201.jpg)
ADD MATERIAL STREAM
![Page 202: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/202.jpg)
RENAME STREAM
![Page 203: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/203.jpg)
SPECIFY FEED CONDITION Feed
(Saturated Liquid Feed) Vapor fraction = 0
P = 2 atm F = 100 kmol/hr
z IPA =0.5 z WATER =0.5
![Page 204: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/204.jpg)
SPECIFY FEED CONDITION EF
P = 2 atm T = 184.5 oC
F = 100 kmol/hr z DMSO =1
![Page 205: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/205.jpg)
SPECIFY FEED CONDITION MAKEUP
P = 2 atm T = 25 oC
F = 0 kmol/hr z DMSO =1
![Page 206: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/206.jpg)
BLOCK INPUT
![Page 207: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/207.jpg)
BLOCK INPUT
![Page 208: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/208.jpg)
BLOCK INPUT
![Page 209: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/209.jpg)
Click ► to run simulation
RUN SIMULATION
![Page 210: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/210.jpg)
CHECK CONVERGENCE STATUS
Check result
![Page 211: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/211.jpg)
CHECK STREAMS RESULT
![Page 212: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/212.jpg)
DESIGN SPECS/VARYDESIGN SPECS/VARY
![Page 213: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/213.jpg)
ADD NEW DESIGN SPECSADD NEW DESIGN SPECS
![Page 214: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/214.jpg)
DESIGN SPECS: SPECIFICATIONDESIGN SPECS: SPECIFICATION
![Page 215: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/215.jpg)
DESIGN SPECS: COMPONENTSDESIGN SPECS: COMPONENTS
![Page 216: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/216.jpg)
DESIGN SPECS: FEED/PRODUCT STREAMSDESIGN SPECS: FEED/PRODUCT STREAMS
![Page 217: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/217.jpg)
ADD NEW VERYADD NEW VERY
![Page 218: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/218.jpg)
VERY: SPECIFICATIONSVERY: SPECIFICATIONS
![Page 219: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/219.jpg)
RUN SIMULATIONRUN SIMULATION
Click ► to run simulation
![Page 220: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/220.jpg)
CHECK CONVERGENCE STATUSCHECK CONVERGENCE STATUS
![Page 221: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/221.jpg)
DESIGN SPECS/VARYDESIGN SPECS/VARY
![Page 222: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/222.jpg)
ADD NEW DESIGN SPECSADD NEW DESIGN SPECS
![Page 223: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/223.jpg)
DESIGN SPECS: SPECIFICATIONDESIGN SPECS: SPECIFICATION
![Page 224: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/224.jpg)
DESIGN SPECS: COMPONENTSDESIGN SPECS: COMPONENTS
![Page 225: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/225.jpg)
DESIGN SPECS: FEED/PRODUCT STREAMSDESIGN SPECS: FEED/PRODUCT STREAMS
![Page 226: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/226.jpg)
ADD NEW VERYADD NEW VERY
![Page 227: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/227.jpg)
VERY: SPECIFICATIONSVERY: SPECIFICATIONS
![Page 228: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/228.jpg)
RUN SIMULATIONRUN SIMULATION
Click ► to run simulation
![Page 229: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/229.jpg)
CHECK CONVERGENCE STATUSCHECK CONVERGENCE STATUS
![Page 230: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/230.jpg)
D2D1
CHECK STREAMS RESULTCHECK STREAMS RESULT
![Page 231: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/231.jpg)
RECYCLE STREAM
![Page 232: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/232.jpg)
RECYCLE STREAM
![Page 233: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/233.jpg)
RECYCLE STREAM
![Page 234: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/234.jpg)
TEAR
![Page 235: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/235.jpg)
CHECK STREAMS RESULT
![Page 236: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/236.jpg)
SUMMARY OF REBOILERSUMMARY OF REBOILER
Include reboiler duty, bottoms rate, boilup rate, boilup ratio
B1 B2
![Page 237: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/237.jpg)
TRAY SIZINGTRAY SIZING
237
![Page 238: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/238.jpg)
TRAY SIZINGTRAY SIZING
238
Click ► to run simulation
![Page 239: Introduction to Aspen Plus-2012](https://reader031.vdocuments.pub/reader031/viewer/2022020921/577cc2bf1a28aba711947d76/html5/thumbnails/239.jpg)
TRAY SIZINGTRAY SIZING
239
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TRAY RATINGTRAY RATING
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UPDATE PRESSURE DROP OF STAGESUPDATE PRESSURE DROP OF STAGES
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CHECKS PRESSURE DROP RESULTCHECKS PRESSURE DROP RESULT