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Aspen HYSYS: Process Modeling



The training course of Aspen HYSYS: Process Modeling MBA, is prepared for those who have  A background in chemical/process engineering, the oil/gas industry, or petroleum refining, and Basics of and handling the Aspen HYSYS Steady-state simulation.

Course Objectives:

At the end of this course the participants will be able to:

  • Learn to build, navigate and optimize process simulations using Aspen HYSYS.
  • Learn efficient use of different HYSYS functions to build advanced steady-state process simulations.
  • Leverage the intuitive solving capabilities and other key features of Aspen HYSYS that allow for rapid Flowsheet construction.
  • Use the Workbook and Flowsheet interfaces for quick and effective modeling.
  • Discover how multi-flow sheet integration can streamline and organize simulation efforts.
  • Improve the convergence characteristics of columns and flow sheets; troubleshoot common problems.
  • Discover how multi-flowsheet integration can streamline and organize simulation efforts
  • Explore different means of reporting results, including the use of Microsoft Excel VB macros
  • Evaluate the performance of existing equipment by leveraging the rating capabilities of Aspen HYSYS
  • Improve the convergence characteristics of columns and flowsheets; troubleshoot common problems
  • Perform Case studies to determine the optimum operating point for a process
  • Understand the pipeline hydraulics calculations used to assess the sizing requirements for a gas gathering system

Targeted Audience:

  • Process Engineers with Process simulation experience.
  • New engineering graduates/technologists who will be using Aspen HYSYS in their daily work.
  • Process engineers doing process design and optimization projects and studies.
  • Plant engineers checking plant performance under different operating conditions.
  • R&D engineers and researchers using Aspen HYSYS for process synthesis.

Course Outlines:

Unit 1: Propane Refrigeration Loop:

  • Add and connect operations to construct a simple flowsheet.
  • Use the graphic interface to manipulate flowsheet objects and provide a clearer representation of the process.
  • Understand how to process information has propagated both forwards and backward.
  • Convert simulation cases to templates.
  • Workshop: Build and analyze a propane refrigeration loop simulation.

Unit 2: Refrigerated Gas Plant:

  • Install and converge heat exchangers.
  • Use logical operations: Adjust and Balance.
  • Workshop: Model a simplified version of a refrigerated gas plant.

Unit 3: NGL Fractionation Train:

  • Model distillation columns with the assistance of the Column Input Expert.
  • Manipulate column specifications to better represent process constraints.
  • Evaluate utility requirements using the Process Utility Manager.
  • Workshop: Model a two-column natural gas liquid (NGL) recovery plant.

Unit 4: Oil Characterization and HP Separation:

  • Introduce Oil Characterization in Aspen HYSYS.
  • Use the Aspen HYSYS Spreadsheet and Case Study functionality.
  • Workshop: Use the Oil Environment to characterize a crude assay and then employ the Case Study and Spreadsheet operation to determine how the Gas Oil Ratio (GOR) varies with pressure.

Unit 5: Gas Gathering System:

  • Simulate a gas gathering system located on varied terrain using the steady-state capabilities of Aspen HYSYS.
  • Workshop: Use the pipe segment and the Hydraulics subflowsheet to model a piping network in Aspen HYSYS.

Unit 6: Two-Stage Compression:

  • Introduce the use of the recycling operation.
  • Recognize suitable recycling locations.
  • Implement performance curves for rotating equipment.
  • Workshop: Utilize the recycle operation to build a two-stage compression flowsheet; define and activate compressor curves.

Unit 7: Natural Gas Dehydration with TEG:

  • Review the recommended methods to saturate single-phase and two-phase hydrocarbon streams.
  • Discuss the implications of hydrate formation and the different means available to avoid hydrate problems.
  • Model a typical TEG dehydration unit.
  • Workshop: Model a typical TEG dehydration unit and determine water dew point for the dry gas; use the hydrate utility to investigate the effects of methanol injection on hydrate inhibition.

Unit 8: Rating Heat Exchangers:

  • Review heat transfer calculation models in Aspen HYSYS.
  • Configure a shell and tube heat exchanger to use a built-in Rating model.
  • Integrate rigorous Exchanger Design and Rating (EDR) calculations into an Aspen HYSYS flowsheet.
  • Workshop: Use a Rating model to determine if an existing heat exchanger will meet process specifications; design and rate a heat exchanger using the EDR interface inside Aspen HYSYS.

Unit 9: Troubleshooting / Best Practices:

  • Introduce best practices for product integration and automation.
  • Investigate the reasons why a simulation may produce poor results, consistency errors, etc.
  • Identify appropriate thermodynamic models for common processes.
  • Use suggested tips to debug simulations and columns.
  • Workshop: Troubleshoot existing Aspen HYSYS cases; recognize common problem areas in an Aspen HYSYS case.

Unit 10: Reporting in Aspen HYSYS:

  • Create a variety of customized reports using newly added functionality in the Report Manager.
  • Access free Excel utilities designed to extract simulation data.
  • Use Aspen Simulation Workbook to deploy models in Microsoft Excel.
  • Workshop: Use the Report Manager, Excel utilities, and Aspen Simulation Workbook to obtain custom reports.

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