Get Started Guide For New Users Of Aspen HYSYS V8

Revised: Nov 30, 2012Get Started Guide for New Users of Aspen HYSYS V8.01. Lesson Objectives Learn how to create a new Aspen HYSYS simulationLearn to construct flowsheet, including adding blocks and streams, reconnecting streams, andbreaking/joining streams2. Prerequisites Aspen HYSYS V8.03. BackgroundThis tutorial is for first-time Aspen HYSYS users. It shows new users: How to launch Aspen HYSYS UIHow to create a component listHow to select a property packageHow to move from Properties environment to Simulation environmentHow to construct a flowsheetThe examples presented are solely intended to illustrate specific concepts and principles. They may notreflect an industrial application or real situation.4. Aspen HYSYS Solution4.01.We will begin by launching Aspen HYSYS V8.0. From your desktop, select Start and then select AllPrograms.4.02.Select the folder titled AspenTech. Within this folder there is a folder called Process Modeling V8.0.Within the Process Modeling folder there will be folder titled Aspen HYSYS. Within this folder will be ashortcut to AspenHysys.exe.4.03.Clicking the Aspen HYSYS shortcut button will launch AspenHysys.exe. Once HYSYS loads up you havethe option of creating a new case or opening a previously saved case. If you wish to create a new case ,click the New button located on the Start Page. Right below the New button is the Open File button. If you wish to open an example file, click the Examples button in the Get Started tab in theribbon.1

Revised: Nov 30, 20124.04.For this walkthrough we will create a new case. After selecting the New button on the Start Page, thefollowing page will appear.2

Revised: Nov 30, 20124.05.HYSYS will open a new case starting in the Component Lists folder in the Properties environment.Creating a component list is the first step in creating a simulation. To create a component list, click theAdd button. This will create a HYSYS component list by default. If you wish to create an AspenProperties component list, you can select the down arrow and select Aspen Properties.4.06.For this simulation we will add components Methane, Ethane, Propane, i-Butane, n-Butane, and Water.In Component List 1 you will see a list of components on the right. You can simply double click on acomponent from the list and it will be added to your simulation component list. If you wish to addmultiple components at a time, you can highlight a group of components and click the Add button.4.07.In the following screenshot, you can see that after clicking the Add button, the selected components arenow in the component list on the left.3

Revised: Nov 30, 20124.08.You can also type the name of a component in the Search for field as shown below. Once you find thecomponent you are looking for, simply double click the component or click Add to add it to yourcomponent list.4.09.The completed component list for this simulation is shown below.4

Revised: Nov 30, 20124.10.The next step after creating a component list is to define a property package. Go to the Fluid Packagesfolder in the Navigation Pane. Clicking the Add button will create a fluid package from the HYSYSdatabase. You can also click the down arrow to select an Aspen Properties or COMThermo propertypackage.5

Revised: Nov 30, 20124.11.To choose a property package, click into the Basis-1 folder. You will be presented with a list of propertypackages that you can select from. For this simulation, we will choose the Peng-Robinson equation ofstate. Each property package has several options that you can select to more accurately model thespecific system you are working with.6

Revised: Nov 30, 20124.12.If you are working with petroleum assays, you may need to make use of the Petroleum Assays or OilManager folders. These subjects are discussed briefly in modules Dist-018 and Prop-005.7

Revised: Nov 30, 20124.13.If your system involves reactions, you will want to go to the Reactions folder. Here you can add reactionsets and specify reactions. HYSYS supports several types of reactions including conversion, equilibrium,heterogeneous catalytic, kinetic, and simple rate.4.14.The Component Maps folder lets you map fluid component composition across fluid packageboundaries. This is useful when dealing with hypothetical oil components. Two defined fluid packagesare required to perform a component mapping. In most cases you will not need to us e this feature.4.15.The User Properties folder is available for users to create their own properties. Once a user property isdefined, HYSYS will be able to calculate the value of the property for any stream through the UserProperty utility.8

Revised: Nov 30, 20124.16.For this simulation, after we have selected our property package, we will move straight to theSimulation environment. To move to the Simulation environment, click the Simulation button in thebottom left of the screen.4.17.You should notice that the Model Palette automatically opens once you have moved to the Simulationenvironment. The model palette is where you can select unit operations and place them onto theflowsheet. You should explore the model palette to get a sense of where certain unit operations arelocated. Hovering the mouse over an icon will display a tool tip with the name of the unit operation.9

Revised: Nov 30, 20124.18.An alternative to the model palette is the Unit Ops window. Pressing F12 will open the window shownbelow. This window lists every available unit operation in HYSYS. This window also includes radiobuttons to make finding the right unit operations easier.4.19.To re-open the Model Palette, press F4. Place a Material Stream onto the flowsheet. Select the iconshown below and click on the flowsheet where you’d like to place the stream.10

Revised: Nov 30, 20124.20.Double click on the stream to rename it and specify the state variables, flowrate, and composition.When defining a stream you must specify a flowrate, composition, and two of the three state variables:temperature, pressure, and vapour fraction.4.21.For this example, enter a Temperature of 25 C, a Pressure of 1 bar, and a Molar Flow of 100 kgmole/h.Note that you can change the global unit set from the Home tab in the ribbon.11

Revised: Nov 30, 20124.22.To specify the composition of Stream 1, go to the Composition form under the Worksheet tab. To editthe composition, click the Edit button or enter a number in the Mole Fractions area. Once a number isentered the Input Composition window will automatically open.12

Revised: Nov 30, 20124.23.Enter the Mole Fractions shown below for Stream 1 and click the OK button. Once the composition isdefined the stream should solve.4.24.In HYSYS, every block or stream has a status bar at the bottom. When the status bar turns green andsays OK, this means that the block/stream has fully solved. The block or stream on the flowsheet willalso change to a dark blue color to indicate that is has solved.13

Revised: Nov 30, 20124.25.We will now add our first unit operation to the flowsheet. Open the Model Palette again (F4) and selecta Mixer and place it onto the flowsheet.4.26.Double click on the mixer (MIX-100). To connect streams to a block simply select Inlet streams andOutlet streams from the Connections form. Select Stream 1 to be an Inlet for the mixer. After selectingStream1 as an Inlet, the stream will be attached to the mixer on the flowsheet.14

Revised: Nov 30, 20124.27.You can either add more material streams to the flowsheet from the model palette and then selectthem as inlets or outlets from the mixer, or you can create new streams directly from the mixer. To dothis, simply click the Outlet field and type in a new name for a stream. This stream will then be createdand shown on the flowsheet accordingly. For example, let’s enter the stream named Mixed into theOutlet field as shown below.15

Revised: Nov 30, 20124.28.Notice that the status bar of the mixer is now green and says OK. This indicates that the mixer hasenough information and has fully solved. Also note that the flowsheet is updated with an outlet streamcalled Mixed and the mixer block has turned blue, indicating that it is solved.4.29.Create a second Inlet stream into the mixer called Water, as shown below. Notice that when you add anew inlet stream the status bar turns yellow and says Not Solved. This is because the new streamcalled Water is not yet defined.16

Revised: Nov 30, 20124.30.To define the Water stream, you can double click the stream on the flowsheet, or go to the Worksheettab within the Mixer window. From the Worksheet tab, you can edit the conditions and composition ofany attached streams, assuming the degrees of freedom allows you to do so. Enter a Temperature of50 C, a Pressure of 1 bar, and Molar Flow of 100 kgmole/h for the Water stream.17

Revised: Nov 30, 20124.31.Go to the Composition tab and enter a Mole Fraction of 1 for water in the Water stream. You willnotice that as soon as the mixer has enough information to solve, it will do so.18

Revised: Nov 30, 20124.32.To view the results of the Mixed stream, double click on the stream. Notice that you are not able tomodify any of the stream conditions or compositions. This is because this stream is being specified bythe mixer based on the two inlet streams.4.33.HYSYS also allows you to perform back calculations. For example, double click on the Water stream anddelete the Molar Flow.19

Revised: Nov 30, 20124.34.After deleting the molar flow of the Water stream, you will notice that both the Water stream and themixer are not unsolved. Double click on the mixer outlet stream called Mixed. You will notice that thisstream is also unsolved, and now you are able to modify the conditions of this stream. If you enter aMolar Flow of 150 kgmole/h, HYSYS will back calculate the molar flow required for the Water stream.20

Revised: Nov 30, 20124.35.Now let’s say you want to separate the vapor and liquid components of the mixed stream. Add aSeparator block to the flowsheet from the model palette.21

Revised: Nov 30, 20124.36.Double click on the separator block (V-100). Select stream Mixed as the Inlet and create a vapor outletcalled Vapor and a liquid outlet called Liquid. You will notice that the separator will automatically solveas soon as it has enough information to do so.4.37.If you would like to put the solver on hold so that it does not automatically solve when it has enoughinformation, go to the Home tab in the ribbon. Here you will see an option to either put the solver OnHold or make it Active.4.38.You should now know how to create a component list, select a property package, define reactions, andknow the basics of how to add unit operations and streams to the flowsheet.22

Revised: Nov 30, 20125. ConclusionsAfter going through steps described in this tutorial, first-time Aspen HYSYS users should now have the skills tobegin to create their first simulations and to follow the steps described in the University Teaching Modules.6. CopyrightCopyright 2012 by Aspen Technology, Inc. (“AspenTech”). All rights reserved. This work may not bereproduced or distributed in any form or by any means without the prior written consent ofAspenTech. ASPENTECH MAKES NO WARRANTY OR REPRESENTATION, EITHER EXPRESSED OR IMPLIED, WITHRESPECT TO THIS WORK and assumes no liability for any errors or omissions. In no event will AspenTech beliable to you for damages, including any loss of profits, lost savings, or othe r incidental or consequentialdamages arising out of the use of the information contained in, or the digital files supplied with or for use with,this work. This work and its contents are provided for educational purposes only.AspenTech , aspenONE , and the Aspen leaf logo, are trademarks of Aspen Technology, Inc. Brands andproduct names mentioned in this documentation are trademarks or service marks of their respective companies.23

Learn how to create a new Aspen HYSYS simulation Learn to construct flowsheet, including adding blocks and streams, reconnecting streams, and breaking/joining streams 2. Prerequisites Aspen HYSYS V8.0 3. Background This tutorial is for first-time Aspen HYSY