Aspen Plus and chemical process simulation
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1. Physical property methods and the criteria for selecting simulation physical property methods, experience in engineering design； Definition of property data sets (common properties used in engineering design) ； Physical property analysis (commonly used physical property analysis in engineering, adaptive analysis techniques) ； Physical property estimation (organic matter estimation, inorganic salts, organic salt estimation: molten salt systems, etc.) ； Use of several electrolyte equations ； Regression of physical property data (regression for conventional components, regression techniques for medium-high pressure mixed systems, several methods for obtaining thermodynamic equilibrium data). Introduction to NIST databases and data estimation and forecasting (TDE). 2. Aspen Plus material and energy balance calculations, gas-liquid-liquid three-phase equilibrium calculations (evaluation of the phase transition temperature using styrene sensitivity) ； Liquid-liquid equilibrium calculation for acetic acid extraction (Design Spec: adjusting solvent amount based on specified requirements) ； Liquid-solid equilibrium calculation (crystallization temperature of sodium sulfate decahydrate) ； Calculation of electrolyte solutions ； Practice with examples*. 3. Aspen Plus distillation simulation calculations; Aspen ConSep for the conceptual design of processes involving azeotropic systems ； DSTWU is applied in the preliminary design of distillation towers ； Practice* ； Design and Optimization of Process Parameters for RadFrac Distillation Columns ； Use the design specification Design Spec for rapid solution ； Optimize the feed plate position using sensitivity analysis ； Use Aspen Column INTERNALS for interactive design and verification of distillation column hydraulics and internals ； Simulation of complex distillation processes such as azeotropic distillation, reactive distillation, and double condensers (including off-gas condensers) ； Practice with examples*. 4. Aspen Plus heat transfer simulation models the heat transfer process of water-air-ethanol. Calculate the boiler heat load and steam excess, determine the heat exchange area and the required amount of steam (as specified in the design), and use Aspen Plus along with Aspen EDR for rapid solution to carry out the design/verification of the heat exchanger. Practice with examples*. 5. Applications of typical process case studies: wastewater stripping, MTBE plants, tetrahydrocarbon extraction and distillation, vinyl chloride plants. 6. Techniques for converging complex processes, as well as other aspects of Aspen Plus; new knowledge points are explained in line with the needs of the students in the class. 7. Application of Aspen Plus in advanced distillation processes: design, verification, and dynamic control of distillation processes ； Strict calculation of the minimum reflux ratio and minimum number of theoretical plates ； Simulation of complex distillation processes such as azeotropic distillation, reactive distillation, and double condensers ； Combined process of extractive distillation and solvent recovery—phenol extracting toluene. 8. Application of Aspen Plus in advanced distillation processes (continued): Separation of homogeneous azeotropes — Pressure-swapped distillation for the separation of ethanol and benzene ； Separation of heterogeneous azeotropes—butanol dehydration ； Simulation techniques for electrolyte processes and distillation columns in petroleum refining processes ； Practice with examples*. 9. Aspen Plus is used for the development of actual process packages; key considerations and points for modeling and simulation of real industrial plants. 10. Aspen Plus full-process simulation: A full-process simulation was carried out for a plant’s process of producing styrene through the catalytic dehydrogenation of ethylbenzene, with an emphasis on understanding the unit operation modules related to distillation, reaction, and heat exchange, as well as techniques for achieving convergence in complex processes ； Practice*. 11. Characteristics of batch processes in AspenPlus, batch equipment, and the improved batch distillation module: Modeling of batch distillation processes ； Browse the basic and advanced setting forms related to the module ； Use interactive flowcharts to visualize processes and navigate to the relevant form through them. Understand the information on strict heat transfer and add controllers to the model. View changes in simulation conditions during and after the simulation using interactive flowcharts and charts. . If interested, send a private message or leave your contact details
Aspen Plus is a process simulation software widely used in the chemical industry, capable of simulating chemical processes and unit operations. The choice of physical property method is usually determined by the type of material system, pressure and temperature range, as well as whether electrolytes are present. The material property dataset defines the thermodynamic and physical properties required for simulation. Property analysis and estimation involve the prediction and filling of missing data, such as using models like UNIFAC to estimate the properties of organic substances. Electrolyte equations such as the NRTL electrolyte or Pitzer model are commonly used to deal with systems containing electrolytes. Property data regression is the process of using experimental data to adjust and optimize the parameters of property models. When performing material and energy balance calculations in Aspen Plus, it is possible to handle gas-liquid-liquid three-phase equilibrium, liquid-liquid extraction equilibrium, liquid-solid equilibrium, and more. Distillation simulation calculations can utilize various unit operation modules; for example, DSTWU can be used for the preliminary design of distillation processes, while RadFrac is employed for the detailed design and optimization of process parameters. Heat transfer simulation can calculate the heat load and heat transfer area of heat exchangers, and it can be used in conjunction with Aspen EDR for design and verification. Typical applications of such process cases include wastewater treatment, MTBE production, and tetrahydrocarbon extraction distillation. Complex process convergence techniques refer to methods for dealing with processes that are difficult to converge in simulations. Aspen Plus can also be applied to advanced distillation processes, such as azeotropic distillation and reactive distillation. When carrying out actual process development and industrial plant modeling, considerations include the accuracy of property selection, the reliability of the model, and the rationality of the parameters. Full-process simulation refers to the comprehensive simulation of the entire process in a plant, such as the dehydrogenation reaction of ethylbenzene. For batch processes, Aspen Plus provides specialized modules to handle such operations. Users can set up intermittent devices, adjust parameters, and monitor changes in conditions during the simulation process. It should be noted that to use the Aspen Plus software effectively for simulation and design, a thorough understanding of chemical processes, thermodynamics, and related simulation techniques is required. The mentioned practice exercises, hands-on teaching, and private message support require actual course learning or professional technical assistance to be obtained. .
19943211570, thank you so much!
Thank you to the original poster for sharing, thanks.