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The Aspen HYSYS flowsheet for each of these files and a short description of the control schemes are included in the conclusion section of this guide. These files are Debutanizer Solution RefluxBottoms Control Case.hsc and Debutanizer Solution DistillateBoilup Control Case.hsc. In addition, two other alternative control scheme HYSYS files are included. This guide will show the steps necessary to add the control equipment to the steady-state debutanizer file that is present in the LV-1 control case. Debutanizer Solution RefluxBoilup1 Control Case.hsc is a dynamics-ready file. The file Debutanizer SS Starter.hsc is the steady-state simulation for the debutanizer column. Four Aspen HYSYS files come compressed with this guide. The steps required towards developing and implementing a working control scheme, and studying column dynamic response using Aspen HYSYS Dynamics, will then be outlined. This guide will begin with a brief walkthrough of the process for setting up a steady-state column model. Using both of these programs in concert provides a comprehensive summary of how a column will perform under varying plant conditions and perturbations to the column s normal steady-state operation. To obtain a simulation of a column with an implemented control scheme, Aspen HYSYS Dynamics should be utilized. In order to obtain working simulation for a column in steady-state operation, Aspen HYSYS can be used. Control schemes also help to maintain product purity and flow, ensuring that acceptable materials exit the column. For these reasons and more, control schemes are usually implemented on columns in order to ensure that variables such as temperature, pressure, and flow at critical points throughout the column remain constant. It is also important to maintain flow through columns to ensure safety. They are used to separate components in mixtures where the material exiting columns often have stringent purity and flow constraints to maintain. 9 Strip Charts.11 Execution of Dynamic Simulation.11 Implementing Disturbances Conclusion Additional Resources bģ Introduction Columns are an integral part of most processes. 6 Implementing and Sizing Control Valves. 4 Preparation of Flowsheet for Dynamic Simulation. Alex Rao, Product Management, Aspen Technology, Inc.Ģ Table of Contents Introduction Preparing a Steady-State Model. 1 Jump Start: Using Aspen HYSYS Dynamics with Columns A Brief Tutorial (and supplement to training and online documentation) Ajay Lakshmanan, Product Management, Aspen Technology, Inc.