Aspen Plus

Problem Description, 1315.2 The Proper Selection for Property Method for Extraction Processes, 1315.3 Defining New Property Sets, 1365.4 The Property Method Validation Versus Experimental Data Using Sensitivity Analysis, 1365.5 A Multistage Extraction Column, 1425.6 The Triangle Diagram, 146References, 1496 Reactors with Simple Reaction Kinetic Forms 1556.1 Problem Description, 1556.2 Defining Reaction Rate Constant to Aspen Plus(r) Environment, 1556.3 Entering Components and Method of Property, 1576.4 The Rigorous Plug-Flow Reactor (RPLUG), 1596.5 Reactor and Reaction Specifications for RPLUG (PFR), 1616.6 Running the Simulation (PFR Only), 167Exercise 6.1, 1676.7 Compressor (CMPRSSR) and RadFrac Rectifying Column (RECTIF), 1686.8 Running the Simulation (PFR + CMPRSSR + RECTIF), 171Exercise 6.2, 1726.9 RadFrac Distillation Column (DSTL), 1726.10 Running the Simulation (PFR + CMPRSSR + RECTIF + DSTL), 1746.11 Reactor and Reaction Specifications for RCSTR, 1756.12 Running the Simulation (PFR + CMPRSSR + RECTIF + DSTL + RCSTR), 179Exercise 6.3, 1806.13 Sensitivity Analysis: The Reactor's Optimum Operating Conditions, 181References, 1887 Reactors with Complex (Non-Conventional) Reaction Kinetic Forms 1977.1 Problem Description, 1977.2 Non-Conventional Kinetics: LHHW Type Reaction, 1997.3 General Expressions for Specifying LHHW Type Reaction in Aspen Plus, 2007.3.1 The "Driving Force" for the Non-Reversible (Irreversible) Case, 2017.3.2 The "Driving Force" for the Reversible Case, 2017.3.3 The "Adsorption Expression", 2027.4 The Property Method: "SRK", 2027.5 Rplug Flowsheet for Methanol Production, 2037.6 Entering Input Parameters, 2037.7 Defining Methanol Production Reactions as LHHW Type, 2057.8 Sensitivity Analysis: Effect of Temperature and Pressure on Selectivity, 216References, 2198 Pressure Drop, Friction Factor, ANPSH, and Cavitation 2298.1 Problem Description, 2298.2 The Property Method: "STEAMNBS", 2298.3 A Water Pumping Flowsheet, 2308.4 Entering Pipe, Pump, and Fittings Specifications, 2318.5 Results: Frictional Pressure Drop, the Pump Work, Valve Choking, and ANPSH Versus RNPSH, 237Exercise 8.1, 2388.6 Model Analysis Tools: Sensitivity for the Onset of Cavitation or Valve Choking Condition, 242References, 2479 The Optimization Tool 2519.1 Problem Description: Defining the Objective Function, 2519.2 The Property Method: "STEAMNBS", 2529.3 A Flowsheet for Water Transport, 2539.4 Entering Stream, Pump, and Pipe Specifications, 2539.5 Model Analysis Tools: The Optimization Tool, 2569.6 Model Analysis Tools: The Sensitivity Tool, 2609.7 Last Comments, 263References, 26410 Heat Exchanger (H.E.) Design 26910.1 Problem Description, 26910.2 Types of Heat Exchanger Models in Aspen Plus, 27010.3 The Simple Heat Exchanger Model ("Heater"), 27210.4 The Rigorous Heat Exchanger Model ("HeatX"), 27410.5 The Rigorous Exchanger Design and Rating (EDR) Procedure, 27910.5.1 The EDR Exchanger Feasibility Panel, 27910.5.2 The Rigorous Mode Within the "HeatX" Block, 29410.6 General Footnotes on EDR Exchanger, 294References, 29711 Electrolytes 30111.1 Problem Description: Water De-Souring, 30111.2 What Is an Electrolyte?, 30111.3 The Property Method for Electrolytes, 30211.4 The Electrolyte Wizard, 30211.5 Water De-Souring Process Flowsheet, 31011.6 Entering the Specifications of Feed Streams and the Stripper, 311References, 31512 Polymerization Processes 32512.1 The Theoretical Background, 32512.1.1 Polymerization Reactions, 32512.1.2 Catalyst Types, 32612.1.3 Ethylene Process Types, 32712.1.4 Reaction Kinetic Scheme, 32712.1.5 Reaction Steps, 32712.1.6 Catalyst States, 32812.2 High-Density Polyethylene (HDPE) High-Temperature Solution Process, 32912.2.1 Problem Definition, 33012.2.2 Process Conditions, 33012.3 Creating Aspen Plus Flowsheet for HDPE, 33112.4 Improving Convergence, 33812.5 Presenting the Property Distribution of Polymer, 339References, 34313 Characterization of Drug-Like Molecules Using Aspen Properties 36113.1 Introduction, 36113.2 Problem Description, 36213.3 Creating Aspen Plus Pharmaceutical Template, 36313.3.1 Entering the User-Defined Benzamide (BNZMD-UD) as Conventional, 36313.3.2 Specifying Properties to Estimate, 36413.4 Defining Molecular Structure of BNZMD-UD, 36413.5 Entering Property Data, 37013.6 Contrasting Aspen Plus Databank (BNZMD-DB) Versus BNZMD-UD, 373References, 37514 Solids Handling 37914.1 Introduction, 37914.2 Problem Description #1: The Crusher, 37914.3 Creating Aspen Plus Flowsheet, 38014.3.1 Entering Components Information, 38014.3.2 Adding the Flowsheet Objects, 38114.3.3 Defining the Particle Size Distribution (PSD), 38214.3.4 Calculation of the Outlet PSD, 385Exercise 14.1 (Determine Crusher Outlet PSD from Comminution Power), 386Exercise 14.2 (Specifying Crusher Outlet PSD), 38614.4 Problem Description #2: The Fluidized Bed for Alumina Dehydration, 38714.5 Creating Aspen Plus Flowsheet, 38714.5.1 Entering Components Information, 38714.5.2 Adding the Flowsheet Objects, 38814.5.3 Entering Input Data, 38914.5.4 Results, 391Exercise 14.3 (Reconverging the Solution for an Input Change), 392References, 39315 Aspen Plus(r) Dynamics 40915.1 Introduction, 40915.2 Problem Description, 41015.3 Preparing Aspen Plus Simulation for Aspen Plus Dynamics (APD), 41115.4 Conversion of Aspen Plus Steady-State into Dynamic Simulation, 41615.4.1 Modes of Dynamic CSTR Heat Transfer, 41715.4.2 Creating Pressure-Driven Dynamic Files for APD, 42215.5 Opening a Dynamic File Using APD, 42315.6 The "Simulation Messages" Window, 42415.7 The Running Mode: Initialization, 42515.8 Adding Temperature Control (TC) Unit, 42615.9 Snapshots Management for Captured Successful Old Runs, 43015.10 The Controller Faceplate, 43115.11 Communication Time for Updating/Presenting Results, 43415.12 The Closed-Loop Auto-Tune Variation (ATV) Test Versus Open-Loop Tune-Up Test, 43415.13 The Open-Loop (Manual Mode) Tune-Up for Liquid Level Controller, 43615.14 The Closed-Loop Dynamic Response for Liquid Level Load Disturbance, 44315.15 The Closed-Loop Dynamic Response for Liquid Level Set-Point Disturbance, 44815.16 Accounting for Dead/Lag Time in Process Dynamics, 45015.17 The Closed-Loop (Auto Mode) ATV Test for Temperature Controller (TC), 45115.18 The Closed-Loop Dynamic Response: "TC" Response to Temperature Load Disturbance, 45915.19 Interactions Between "LC" and "TC" Control Unit, 46215.20 The Stability of a Process Without Control, 46415.21 The Cascade Control, 46615.22 Monitoring of Variables as Functions of Time, 46815.23 Final Notes on the Virtual (DRY) Process Control in APD, 472References, 47816 Safety and Energy Aspects of Chemical Processes 48716.1 Introduction, 48716.2 Problem Description, 48716.3 The "Safety Analysis" Environment, 48816.4 Adding a Pressure Safety Valve (PSV), 49016.5 Adding a Rupture Disk (RD), 49616.6 Presentation of Safety-Related Documents, 50016.7 Preparation of Flowsheet for "Energy Analysis" Environment, 50116.8 The "Energy Analysis" Activation, 50616.9 The "Energy Analysis" Environment, 51016.10 The Aspen Energy Analyzer, 51217 Aspen Process Economic Analyzer (APEA) 52317.1 Optimized Process Flowsheet for Acetic Anhydride Production, 52317.2 Costing Options in Aspen Plus, 52517.2.1 Aspen Process Economic Analyzer (APEA) Estimation Template, 52517.2.2 Feed and Product Stream Prices, 52717.2.3 Utility Association with a Flowsheet Block, 52817.3 The First Route for Chemical Process Costing, 53117.4 The Second Round for Chemical Process Costing, 53217.4.1 Project Properties, 53317.4.2 Loading Simulator Data, 53517.4.3 Mapping and Sizing, 53717.4.4 Project Evaluation, 54417.4.5 Fixing Geometrical Design-Related Errors, 54617.4.6 Executive Summary, 54917.4.7 Capital Costs Report, 55017.4.8 Investment Analysis, 55118 Term Projects (TP) 56518.1 TP #1: Production of Acetone via the Dehydration of Isopropanol, 56518.2 TP #2: Production of Formaldehyde from Methanol (Sensitivity Analysis), 56918.3 TP #3: Production of Dimethyl Ether (Process Economics and Control), 57018.3.1 Economic Analysis, 57018.3.2 Process Dynamics and Control, 57218.4 TP #4: Production of Acetic Acid via Partial Oxidation of Ethylene Gas, 57418.5 TP #5: Pyrolysis of Benzene, 57518.6 TP #6: Reuse of Spent Solvents, 57518.7 TP #7: Solids Handling: Production of Potassium Sulfate from Sodium Sulfate, 57618.8 TP #8: Solids Handling: Production of CaCO3-Based Agglomerate as a General Additive, 57718.9 TP #9: Solids Handling: Formulation of Di-Ammonium Phosphate and Potassium Nitrate Blend Fertilizer, 57718.10 TP #10: "Flowsheeting Options" | "Calculator": Gas De-Souring and Sweetening Process, 57818.11 TP #11: Using More than One Property Method and Stream Class: Solid Catalyzed Direct Hydration of Propylene to Isopropyl Alcohol (IPA), 58218.12 TP #12: Polymerization: Production of Polyvinyl Acetate (PVAC), 58618.13 TP #13: Polymerization: Emulsion Copolymerization of Styrene and Butadiene to Produce SBR, 58818.14 TP #14: Polymerization: Free Radical Polymerization of Methyl Methacrylate to Produce Poly(Methyl Methacrylate), 59018.15 TP #15: LHHW Kinetics: Production of Cyclohexanone-Oxime (CYCHXOXM) via Cyclohexanone Ammoximation Using Clay-Based Titanium Silicalite (TS) Catalyst, 592Index 595