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  • 1. Copyright Notice 2002 Hyprotech, a subsidiary of Aspen Technology, Inc. All rights reserved. Hyprotech is the owner of, and have vested in them, the copyright and all other intellectual property rights of a similar nature relating to their software, which includes, but is not limited to, their computer programs, user manuals and all associated documentation, whether in printed or electronic form (the Software), which is supplied by us or our subsidiaries to our respective customers. No copying or reproduction of the Software shall be permitted without prior written consent of Aspen Technology, Inc., Ten Canal Park, Cambridge, MA 02141, U.S.A., save to the extent permitted by law. Hyprotech reserves the right to make changes to this document or its associated computer program without obligation to notify any person or organization. Companies, names, and data used in examples herein are fictitious unless otherwise stated. Hyprotech does not make any representations regarding the use, or the results of use, of the Software, in terms of correctness or otherwise. The entire risk as to the results and performance of the Software is assumed by the user. HYSYS, HYSIM, HTFS, DISTIL, HX-NET, and HYPROP III are registered trademarks of Hyprotech. PIPESYS is a trademark of Neotechnology Consultants. Microsoft Windows, Windows 95/98, Windows NT, Windows 2000, Visual Basic, and Excel are registered trademarks of the Microsoft Corporation. Documentation Credits Authors of the current release, listed in order of historical start on project (2002-1995): Pamela Smith; Clement Ng, BASc; Sandy Brar, BSc; Jessie Channey, BAC; Tsitsi Ettienne, BSc; Angeline Teh, BSc; Sarah-Jane Brenner, BASc; Conrad Gierer, BASc; Chris Strashok, BSc; Adeel Jamil, BSc; Yannick Sternon, BIng; Nana Nguyen, BSc; Allan Chau, BSc; Muhammad Sachedina, BASc; Lisa Hugo, BSc, BA; Chris Lowe, PEng; Kevin Hanson, PEng. Since software is always a work in progress, any version, while representing a milestone, is nevertheless but a point in a continuum. Those individuals whose contributions created the foundation upon which this work is built have not been forgotten. The current authors would like to thank the previous contributors. A special thanks is also extended by the authors to everyone who contributed through countless hours of proof-reading and testing. Contacting Hyprotech Hyprotech can be conveniently accessed via the following: Web site: www.hyprotech.com Information and Sales: info@hyprotech.com Documentation: HypCalgaryDocumentation@hyprotech.com Training: training@hyprotech.com Technical Support: support@hyprotech.com Detailed information on accessing Hyprotech Technical Support can be found in the Technical Support section of the Get Started manual. TAH3.1-B4814-NOV02-O

2. iii TableofContents A HYSYS Tutorials.........................................................A-1 1 Gas Processing Tutorial.............................................1-1 1.1 Introduction .......................................................................1-3 1.2 Steady State Simulation....................................................1-4 1.3 Dynamic Simulation ........................................................1-98 2 Refining Tutorial.........................................................2-1 2.1 Introduction .......................................................................2-3 2.2 Steady State Simulation....................................................2-5 2.3 Dynamic Simulation ......................................................2-114 3 Chemicals Tutorial.....................................................3-1 3.1 Introduction .......................................................................3-3 3.2 Steady State Simulation....................................................3-4 3.3 Dynamic Simulation ........................................................3-76 B HYSYS Applications...................................................B-1 G1 Acid Gas Sweetening with DEA.............................. G1-1 G1.1 Process Description.......................................................G1-3 G1.2 Setup..............................................................................G1-5 G1.3 Steady State Simulation.................................................G1-5 G1.4 Simulation Analysis......................................................G1-15 G1.5 Calculating Lean & Rich Loadings...............................G1-15 G1.6 Dynamic Simulation .....................................................G1-17 G1.7 References...................................................................G1-34 3. iv R1 Atmospheric Crude Tower .......................................R1-1 R1.1 Process Description....................................................... R1-3 R1.2 Setup.............................................................................. R1-6 R1.3 Steady State Simulation............................................... R1-10 R1.4 Results......................................................................... R1-18 R2 Sour Water Stripper..................................................R2-1 R2.1 Process Description....................................................... R2-3 R2.2 Introduction .................................................................... R2-4 R2.3 Setup.............................................................................. R2-4 R2.4 Steady State Simulation................................................. R2-5 R2.5 Results........................................................................... R2-8 R2.6 Case Study .................................................................. R2-10 P1 Propylene/Propane Splitter ......................................P1-1 P1.1 Process Description....................................................... P1-3 P1.2 Setup.............................................................................. P1-4 P1.3 Steady State Simulation................................................. P1-5 P1.4 Results......................................................................... P1-10 C1 Ethanol Plant............................................................C1-1 C1.1 Process Description....................................................... C1-3 C1.2 Setup.............................................................................. C1-6 C1.3 Steady State Simulation................................................. C1-6 C1.4 Results......................................................................... C1-13 C2 Synthesis Gas Production........................................C2-1 C2.1 Process Description....................................................... C2-3 C2.2 Setup.............................................................................. C2-4 C2.3 Steady State Simulation................................................. C2-9 C2.4 Results......................................................................... C2-16 X1 Case Linking.............................................................X1-1 X1.1 Process Description....................................................... X1-3 X1.2 Building Flowsheet 1...................................................... X1-4 X1.3 Building Flowsheet 2...................................................... X1-8 X1.4 Creating a User Unit Operation.................................... X1-10 4. HYSYS Tutorials A-1 A-1 A HYSYSTutorials The Tutorials section of this manual presents you with independent tutorial sessions. Each tutorial guides you step-by-step through the complete construction of a HYSYS simulation. The tutorial(s) you choose to work through will likely depend on the simulation topic that is most closely related to your work, your familiarity with HYSYS and the types of simulation cases you anticipate on creating in the future. Regardless of which tutorial you work through first, you will gain the same basic understanding of the steps and tools used to build a HYSYS simulation. After building one of these tutorial cases, you might choose to build one or several more, or begin creating your own simulations. The three tutorials are grouped in three general areas of interest: 1. Gas Processing 2. Refining 3. Chemicals Each area has an associated steady state and dynamic tutorial. The dynamic tutorials use the steady state cases and add control schemes and dynamic specifications required to run the case in Dynamic mode. If you are interested only in steady state simulation, go through the steady state tutorial(s) that most interest you and stop at the dynamics section. If you are interested only in learning to apply dynamic simulation methods, use the pre-built steady state base case, included with HYSYS, as the starting point for your dynamic tutorial case. If you are new to HYSYS, it is recommended that you begin with the steady state tutorials. These tutorials explicitly detail each step required to complete the simulation. In steps where more than one method is available to complete a particular action, all methods are outlined. The dynamic tutorials (which are continued after the steady state section) are also presented in a step-by-step manner, but are less detailed in their explanations. They assume a rudimentary knowledge of the HYSYS interface and methods. All completed Tutorial cases are included with your HYSYS package, and are available on HYSYSSamples. 5. A-2 A-2 Introduction In the chapters that follow, example problems are used to illustrate some of the basic concepts of building a simulation in HYSYS. Three complete tutorials are presented: 1. Gas Processing Steady State. Models a sweet gas refrigeration plant consisting of an inlet separator, gas/gas heat exchanger, chiller, low- temperature separator and de-propanizer column. Dynamics. Models the Gas Processing tutorial case in Dynamic mode. This tutorial makes use of the recommendations of the Dynamic Assistant when building the case. 2. Refining St