<ul><li><p>Version 11.1</p></li><li><p>Part Number: Aspen Plus 11.1September 2001Copyright (c) 1981-2001 by Aspen Technology, Inc. All rights reserved.</p><p>Aspen Plus, Aspen Properties, Aspen Engineering Suite, AspenTech, ModelManager, the aspen leaf logo andPlantelligence are trademarks or registered trademarks of Aspen Technology, Inc., Cambridge, MA.</p><p>BATCHFRAC and RATEFRAC are trademarks of Koch Engineering Company, Inc.</p><p>All other brand and product names are trademarks or registered trademarks of their respective companies.</p><p>This manual is intended as a guide to using AspenTech's software. This documentation contains AspenTechproprietary and confidential information and may not be disclosed, used, or copied without the prior consent ofAspenTech or as set forth in the applicable license agreement. Users are solely responsible for the proper use of thesoftware and the application of the results obtained.</p><p>Although AspenTech has tested the software and reviewed the documentation, the sole warranty for the software maybe found in the applicable license agreement between AspenTech and the user. ASPENTECH MAKES NOWARRANTY OR REPRESENTATION, EITHER EXPRESSED OR IMPLIED, WITH RESPECT TO THISDOCUMENTATION, ITS QUALITY, PERFORMANCE, MERCHANTABILITY, OR FITNESS FOR APARTICULAR PURPOSE.</p><p>CorporateAspen Technology, Inc.Ten Canal ParkCambridge, MA 02141-2201USAPhone: (1) (617) 949-1021Toll Free: (1) (888) 996-7001Fax: (1) (617) 949-1724URL: http://www.aspentech.com</p><p>DivisionDesign, Simulation and Optimization SystemsAspen Technology, Inc.Ten Canal ParkCambridge, MA 02141-2201USAPhone: (617) 949-1000Fax:(617) 949-1030</p></li><li><p>Getting Started Building and Running a Process Model Contents i</p><p>Contents</p><p> About This ManualWhy Use Process Simulation? .........................................................................................1-1What is an Aspen Plus Process Simulation Model?.........................................................1-2Sessions in this Book .......................................................................................................1-3Using Backup Files ..........................................................................................................1-3Related Documentation ....................................................................................................1-4</p><p>Getting Started Guides .........................................................................................1-4Installation Guide .................................................................................................1-4User Guide............................................................................................................1-4</p><p>Technical Support ............................................................................................................1-4Online Technical Support Center .........................................................................1-4Contacting Customer Support ..............................................................................1-5Hours ....................................................................................................................1-5Phone....................................................................................................................1-5Fax........................................................................................................................1-6E-mail ...................................................................................................................1-6</p><p> Aspen Plus BasicsStarting Aspen Plus ..........................................................................................................2-2The Aspen Plus Main Window ........................................................................................2-3Opening a File ..................................................................................................................2-4</p><p>To Display the File Menu.....................................................................................2-4Selecting Flowsheet Objects ............................................................................................2-6Using a Shortcut Menu.....................................................................................................2-7</p><p>To Display the Shortcut Menu for Stream 1 ........................................................2-7Opening Input Sheets .......................................................................................................2-8</p><p>To Open the Input Sheets for Stream 1 ................................................................2-8Using Help......................................................................................................................2-10</p><p>To Get Help on any Topic..................................................................................2-11Entering Data on a Sheet ................................................................................................2-11Expert Guidance - the Next Function.............................................................................2-13</p><p>To Use the Next Function to Display the Next Required Sheet.........................2-13To Run the Simulation .......................................................................................2-16</p></li><li><p>ii Contents Getting Started Building and Running a Process Model</p><p>Examining Stream and Block Results............................................................................2-17To Display the Flash Overhead Vapor (Stream 2) Results ................................2-17</p><p>Modifying and Rerunning Your Model..........................................................................2-18Saving Your File and Exiting Aspen Plus......................................................................2-19</p><p>To Change the Save Options..............................................................................2-19To Save and Exit ................................................................................................2-20</p><p> Building and Running a Process Simulation ModelBuilding the Process Model .............................................................................................3-2Defining the Simulation: Methylcyclohexane Recovery Column....................................3-2Starting Aspen Plus ..........................................................................................................3-3Creating a New Simulation ..............................................................................................3-3</p><p>To Specify the Application Type and Run Type for the New Run ......................3-3The Aspen Plus Main Window ........................................................................................3-4Defining the Flowsheet ....................................................................................................3-4</p><p>To Select a Unit Operation Block ........................................................................3-4To Choose a RadFrac Icon and Place a Block .....................................................3-5To Connect Streams to the Block.........................................................................3-6</p><p>Adding Data to the Process Model...................................................................................3-7Specifying a Title for the Simulation ...............................................................................3-8Specifying Data to be Reported........................................................................................3-9Entering Components.....................................................................................................3-10</p><p>To Enter a Unique Component ID for Each Component ...................................3-10Selecting Thermodynamic Methods...............................................................................3-12</p><p>To Find the Appropriate Type of Base Method for this Simulation ..................3-12Entering Stream Data .....................................................................................................3-14Entering Unit Operation Block Data ..............................................................................3-15Running the Simulation..................................................................................................3-19Examining Simulation Results.......................................................................................3-20</p><p>To Display the Results for Block B1..................................................................3-20Examining Stream Results .............................................................................................3-22</p><p>To Display the Results for Stream 3 ..................................................................3-22To Display the Results for All Streams the Same Sheet ....................................3-23</p><p>Changing Input Specifications .......................................................................................3-24To Increase the Phenol Solvent Stream Flow Rate ............................................3-24</p><p>Rerunning the Simulation with Changed Input..............................................................3-24Creating Reports.............................................................................................................3-25</p><p>To Generate a Report File ..................................................................................3-25To View and Save Part of a Report....................................................................3-26</p><p>Saving Your File and Exiting Aspen Plus......................................................................3-26</p><p> Performing a Sensitivity AnalysisStarting Aspen Plus ..........................................................................................................4-2Opening an Existing Simulation ......................................................................................4-2</p><p>If Your Saved File MCH.apw is Displayed..........................................................4-2</p></li><li><p>Getting Started Building and Running a Process Model Contents iii</p><p>If Your Saved File MCH.apw is not Displayed ...................................................4-2Saving a Simulation under a New Name..........................................................................4-3Defining the Sensitivity Analysis ......................................................................................4-3Entering Sensitivity Specifications ..................................................................................4-3</p><p>To Create a New Sensitivity Block ......................................................................4-3To Define XMCH as Distillate Product Purity ....................................................4-4To Define QCOND as the Condenser Duty and QREB as Reboiler Duty...........4-5To Specify the Manipulated Variable...................................................................4-6To Format the Tabular Results.............................................................................4-7</p><p>Running the Sensitivity Analysis.......................................................................................4-9Displaying Sensitivity Analysis Results...........................................................................4-9Plotting Sensitivity Results ............................................................................................4-10</p><p>To Generate a Plot of MCH Distillate Purity Versus Phenol Flow Rate ...........4-10Exiting Aspen Plus .........................................................................................................4-11</p><p> Meeting Process Design SpecificationsStarting Aspen Plus ..........................................................................................................5-2Opening an Existing Simulation ......................................................................................5-2</p><p>If Your Saved MCH.apw is Displayed.................................................................5-2If Your Saved File mch.apw is Not Displayed.....................................................5-2</p><p>Saving a Simulation Under a New Name ..........................................................................5-3Defining the Design Specification.....................................................................................5-3</p><p>To Enter Design Specifications............................................................................5-3To Define XMCH.................................................................................................5-4To Set Up the Design Specification .....................................................................5-5To Specify the Manipulated Variable...................................................................5-6</p><p>Running the Design Specification Analysis.......................................................................5-7Examining Design Specification Results .........................................................................5-7Exiting Aspen Plus ...........................................................................................................5-8</p><p> Creating a Process Flow DiagramStarting Aspen Plus ..........................................................................................................6-2Opening an Existing Simulation ......................................................................................6-2</p><p>If Your Saved File MCH.apw is Displayed..........................................................6-2If Your Saved File MCH.apw is not Displayed ...................................................6-2</p><p>Switching to PFD Mode...................................................................................................6-3Adding a Pump to the Diagram........................................................................................6-4</p><p>To Add the Feed Pump to the PFD Diagram .......................................................6-4To Insert the Pump Into the Feed Stream.............................................................6-4</p><p>Displaying Stream Data....................................................................................................6-5To Display Temperature and Pressure .................................................................6-5</p><p>Adding a Stream Table.....................................................................................................6-7To Zoom in on Part of the Diagram .....................................................................6-8</p><p>Adding Text......................................................................................................................6-8To Display the Draw Toolbar...............................................................................6-8</p></li><li><p>iv Contents Getting Started Building and Running a Process Model</p><p>To Add Text .........................................................................................................6-8Printing a Proces...</p></li></ul>