Hydrogen Feed (H2FEED) Hydrogen Nitrogen Methane Benzene Total Flow (lbmol/hr) Temperature (☏) Pressure (psia)ĭistillation Column Number of stages Feed stage Reflux Ratio Cyclohexane recovery Condenser Pressure Reboiler Pressureġ5 8 1.2 99.99 mole % in bottoms 200 psia 210 psiaįeed Preheater Outlet Temperature Outlet Pressure Process operating specifications are listed on the following page.įeed Streams Benzene Feed (BZFEED) Hydrogen Nitrogen Methane Benzene Total Flow (lbmol/hr) Temperature (☏) Pressure (psia) The majority of the liquid stream leaving the flash tank goes to a distillation column to purify the cyclohexane product, while a small portion of the liquid stream is recycled back to the feed mixture to minimize losses of benzene. The vapor stream coming off the flash tank is recycled back to the feed mixture after a small purge stream is removed to prevent impurities from building up in the system. The reactor effluent stream is then sent to a flash tank to separate the light and heavy components of the mixture. This simulation will use a conversion reactor block to model this reaction. This feed mixture is then sent to a fixed-bed catalytic reactor where 3 hydrogen molecules react with 1 benzene molecule to form cyclohexane. Fresh benzene and hydrogen feed streams are first fed through a heater to bring the streams up to reactor feed temperature and pressure conditions. The simplified flowsheet for this process is shown below. Background/Problem Construct an Aspen HYSYS simulation to model the production of cyclohexane via benzene hydrogenation. Lesson Objectives Ĭonstruct an Aspen HYSYS flowsheet simulation of the production of cyclohexane via benzene hydrogenation Become familiar with user interface and tools associated with Aspen HYSYSĪspen HYSYS V8.0 Knowledge of chemical process operationsģ. Includes information on the application of both the Aspen Plus and Aspen Hysys software that enables a comparison of the two software systems Combines the basic theoretical principles of chemical process and design with real-world examples Covers both processes with conventional organic chemicals and processes with more complex materials such as solids, oil blends, polymers and electrolytes Presents examples that are solved using a new version of Aspen software, ASPEN One 9 Written for students and academics in the field of process design, Chemical Process Design and Simulation is a practical and accessible guide to the chemical process design and simulation using proven software.AspenTech Incorporations Aspen Hysys V8.8Ĭases Solved in Hysys Version 8.0 are same as Version 8.8Ĭyclohexane Production with Aspen HYSYS® V8.0 1. The final section covers plant design and simulation of processes using nonconventional components. In addition, to aid in comprehension, solutions to examples of real problems are included. The author also explores the design of new plants and simulation of existing plants where conventional chemicals and material mixtures with measurable compositions are used. The text reviews the design and simulation of individual simple unit operations that includes a mathematical model of each unit operation such as reactors, separators, and heat exchangers. The author describes the basic methodologies for computer aided design and offers a description of the basic steps of process simulation in Aspen Plus and Aspen Hysys. A comprehensive and practical resource, the text uses both Aspen Plus and Aspen Hysys simulation software. A comprehensive and practical resource, t A comprehensive and example oriented text for the study of chemical process design and simulationĬhemical Process Design and Simulation is an accessible guide that offers information on the most important principles of chemical engineering design and includes illustrative examples of their application that uses simulation software. A comprehensive and example oriented text for the study of chemical process design and simulation Chemical Process Design and Simulation is an accessible guide that offers information on the most important principles of chemical engineering design and includes illustrative examples of their application that uses simulation software.
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