Aspen HYSYS: Process Modeling

Overview:

Introduction:

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.