CHEMCAD Version 7 - Chemstations 2018

1 CHEMCAD Version 7 User Guide All material 2016 Chemstations , Inc. CHEMCAD Version 7 User Guide i CHEMCAD Version 7 User Guide Table of Contents Chapter 1 Introduction to CHEMCAD .. 1 Overview of CHEMCAD and Its Uses .. 1 CHEMCAD Products and Features .. 3 CC-STEADY STATE .. 3 CC-DYNAMICS .. 3 CC-BATCH .. 3 CC-THERM .. 3 CC-SAFETY NET .. 3 CC-FLASH .. 3 CHEMCAD Features by Module .. 4 UnitOps by Module .. 5 Chapter 2 Getting Started with CHEMCAD .. 7 Creating a User Support Center Account .. 7 Downloading the Software .. 9 Installing the software .. 9 Licensing CHEMCAD .. 12 Types of CHEMCAD Licenses .. 12 License Settings .. 12 Updating a License .. 14 Getting Help with CHEMCAD .. 17 Online Help .. 17 The Chemstations Website.

2 17 Contacting Chemstations Technical Support .. 17 ii CHEMCAD Version 7 User Guide Chapter 3 The CHEMCAD Interface .. 19 The CHEMCAD Window .. 19 The Workspace .. 19 The CHEMCAD Explorer Pane .. 20 The Recent Files Tab .. 21 The Simulation Tab .. 21 The Visual Basic Tab .. 22 The Palette Pane .. 22 Selecting a Palette .. 23 Changing the Color Scheme of an Existing Palette .. 23 Changing the Order of UnitOp Icons in a Palette .. 24 Removing UnitOp Symbols from a Palette .. 24 Creating a Custom Palette .. 24 Copying an Existing Palette .. 25 Renaming a Palette .. 25 Using a Custom Color Scheme to Change UnitOp Symbol Colors .. 25 Resetting All Built-in Palettes to Default Configuration .. 26 The Messages Pane .. 26 The Errors and Warnings Tab .. 26 The Run Trace Tab.

3 26 The Notes Tab .. 27 The Main Menu .. 27 The Toolbar .. 27 Customizing the CHEMCAD Screen .. 27 Viewing and Hiding Screen Elements .. 28 Resizing and Moving Items .. 28 Resizing a Pane .. 28 Moving a Pane .. 29 Pinning and Unpinning Panes .. 29 Flowsheet Drawing Tools .. 31 The Flowsheet toolbar .. 31 The Arrange toolbar .. 32 The Lock toolbar .. 32 The Draw toolbar .. 32 The TextBox Tool .. 33 Simple Drawing Tools: Line, Arrow Line, Ellipse, Rectangle, RoundRect .. 33 The Polygon Tool .. 33 The Align toolbar .. 34 Other Useful Interface Hints .. 34 Undo and Redo .. 34 Flowsheet Quickview .. 35 Introduction to CHEMCAD CHEMCAD Version 7 User Guide iii Adjusting Your View of the Workspace .. 36 Resetting the User Interface .. 36 Chapter 4 Working with Simulation Files.

4 37 About CHEMCAD Simulation Files .. 37 User Components in CHEMCAD .. 37 Example Files .. 38 Opening an Existing Simulation .. 38 Creating a New Simulation .. 39 Saving a 39 Saving Different Cases for the Same Simulation .. 40 E mailing a Simulation .. 41 Sending from Within CHEMCAD .. 41 Attaching to an E mail .. 41 Working with CHEMCAD Files from Previous Versions .. 42 Chapter 5 Building and Using a Basic Simulation .. 45 Starting a New Simulation .. 45 Specifying Engineering Units .. 45 Selecting Chemical Components .. 46 Finding a Component .. 47 Adding a Component .. 49 Changing the Order of Selected Components .. 49 Removing Items from the Selected Components List .. 50 Selecting K value and Enthalpy Options .. 50 Using the Thermodynamics Wizard.

5 50 Selecting Components to Ignore .. 50 Specifying Process Conditions .. 50 How the Thermodynamics Wizard Makes Suggestions .. 51 Should the Thermodynamics Wizard be trusted to make design decisions? .. 51 Manually Selecting Thermodynamics Settings .. 51 Drawing the Flowsheet .. 52 Adding UnitOps .. 52 Using Alternative UnitOp Symbols .. 53 Manipulating UnitOp Icons .. 54 UnitOp IDs .. 54 UnitOp ID Ranges .. 55 UnitOp Names .. 55 iv CHEMCAD Version 7 User Guide Feed and Product Arrows .. 56 Drawing and Connecting Streams .. 56 Choosing a Stream Route .. 57 Rerouting a Stream .. 57 Stream IDs .. 58 Stream ID Ranges .. 59 Stream Names .. 59 Stream Intersections .. 59 Defining Streams .. 60 Thermodynamic Properties .. 61 Stream Composition .. 61 Total Flow Properties.

6 61 Specifying Equipment Parameters .. 62 Running the Simulation .. 63 Reviewing the Results .. 63 Chapter 6 Using CHEMCAD for High fidelity Modeling .. 65 What is high fidelity modeling? .. 65 Criteria for High fidelity Modeling .. 66 Introduction to Equipment Sizing .. 66 High fidelity Modeling and Sizing for Common UnitOps .. 67 Piping .. 67 Low-fidelity .. 67 Sizing .. 67 High-fidelity .. 68 Pumps, Compressors, and Expanders .. 68 Low-fidelity .. 68 High-fidelity .. 68 Vessels and Tanks .. 68 Low-fidelity .. 68 Sizing .. 69 High-fidelity .. 69 Valves .. 70 Low-fidelity .. 70 Sizing .. 70 High-fidelity .. 70 Columns .. 70 Low-fidelity .. 70 Sizing .. 71 High-fidelity .. 72 Heat Exchangers .. 72 Low-fidelity .. 72 Introduction to CHEMCAD CHEMCAD Version 7 User Guide v Sizing.

7 72 High-fidelity .. 72 Relief Devices .. 73 Low-fidelity .. 73 High-fidelity .. 73 Licensing Considerations for High fidelity Modeling .. 74 Chapter 7 Building and Using a Dynamic Simulation .. 75 What do we mean by dynamics? .. 75 Licensing Considerations .. 75 Additional Input for Dynamic Operation .. 76 Strategies for Dynamic Simulations .. 76 Setting up Dynamic Operation .. 77 Switching to Dynamics .. 77 Setting the Run Time .. 78 Selecting Streams and UnitOps .. 80 Running a Dynamic Simulation .. 81 Run from Initial State .. 81 Run from Current State .. 81 Run One Step at a Time .. 82 Other Dynamic Commands .. 82 Reset to Initial State .. 82 Save As Initial State .. 83 Output from Dynamic Simulations .. 83 Reviewing the Flowsheet Specifications .. 84 Plotting Dynamic Results.

8 84 Text based Dynamic Reports .. 84 Chapter 8 Output and Reports .. 87 Text Reports .. 87 Report Viewer Setup .. 87 Property Sets .. 88 Built-in Property Sets .. 88 User-created Property Sets .. 88 Different Sets for Different Purposes .. 89 The Property Set Preferences Dialog .. 89 Changing an Active Set .. 90 Editing a Property Set .. 90 Creating a New Property Set .. 91 vi CHEMCAD Version 7 User Guide Copying an Existing Property Set .. 92 Format Tab Options .. 92 Resetting Built-in Property Sets .. 92 Deleting a User-added Property Set .. 92 Using the Property Set Library .. 92 Sharing Property Sets with Other CHEMCAD 94 Stream based Reports .. 94 Stream Report .. 94 Particle Size Distribution .. 95 Pseudocomponent Curves .. 96 Stream Groups .. 96 UnitOp based 97 Select UnitOps.

9 97 Spec 98 Distillation .. 98 UnitOp Groups .. 99 Flowsheet based Reports .. 100 Topology .. 100 Thermodynamics .. 100 Mass and Energy Balances .. 100 Dynamics Reports .. 100 Batch Results .. 100 Dynamics .. 100 Consolidated Reports and the CHEMCAD Report Writer .. 100 Choosing and Ordering Report Sections .. 101 Selecting Flowsheet Elements .. 102 Formatting Report Sections .. 102 Naming the Report and Choosing a Destination .. 102 Graphical Reports .. 104 Thermophysical data Graphs .. 104 TPXY .. 104 Binary LLE .. 104 Binodal Plot .. 104 Binodal/Residue Curves .. 104 Residue Curves .. 104 Flowsheet based Graphs .. 104 UnitOp based Plots .. 105 Column Profiles .. 105 Heat Curves .. 105 Plug Flow Reactor Profile .. 105 Pipe Profile .. 105 Controller Convergence.

10 105 Dynamic Plots .. 106 Introduction to CHEMCAD CHEMCAD Version 7 User Guide vii User specified File .. 106 Printing CHEMCAD Reports .. 106 Process Flow Diagrams .. 106 Flowsheet Databoxes .. 106 Stream Boxes .. 107 UnitOp Boxes .. 108 TP Boxes .. 108 Excel Range Boxes .. 109 Printing a Process Flow Diagram .. 110 Chapter 9 Customizing CHEMCAD .. 111 Flowsheet Templates .. 111 Creating a Template .. 112 Viewing a Template s Properties .. 112 Applying a Template .. 112 Renaming or Deleting a Template .. 112 Creating Custom Components .. 113 Adding a Single Component .. 113 Creating the Component .. 113 Regressing data into the Component .. 116 Pseudocomponent Range .. 117 Importing a Neutral File .. 118 Customizing Thermodynamics .. 119 Creating a Custom K value or Enthalpy Model.