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Introduction to Aspen Plus® 2.1

 Aspen team chemical engineering

GMU

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CHEMICAL INDUSTRY

RAW

MATERIAL

PROCESS PRODUCT

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Chemical Engineer’s Challenges 

• Designing new processes

• Evaluating and improving the performance

of existing plants

• Increasing productivity and profitability

• Fulfill the environmental issue

• Business objective

• Maximizing plant performance and

enhancing profitability

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Experience Solution

• Trial error method are costly and

potentially dangerous

• Trial error method is time consuming

• Trial error method is not always sufficient

• Process manufactures require cost-

effective tool that help identify and correctanticipated problem before they occur

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Simulation Process

• Process simulation allows you to predict the behavior ofa process by using basic engineering relationships, suchas mass and energy balances, and phase and chemicalequilibrium

• Given reliable thermodynamic data, realistic operatingconditions, and rigorous equipment models, you cansimulate actual plant behavior

• Process simulation enables you to run many cases,conduct "what if“ analyses, and perform sensitivitystudies and optimization runs

• With simulation, you can design better plants andincrease profitability in existing plants

• Process simulation is useful throughout the entirelifecycle of process, from research and developmentthrough process design to production.

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Using Aspen Plus

Process modeling tool for steady-state

simulation, design, performance

monitoring,

optimization and business planning for

chemicals, specialty chemicals,

petrochemicals and metallurgy

industries. 

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Benefits offered by Aspen Plus

•  Aspen Plus makes it easy to build and run

a process simulation model by providing

you with a comprehensive system of

online prompts, hypertext help, and expertsystem guidance at every step. In many

cases, you will be able to develop an

 Aspen Plus process simulation modelwithout referring to printed manuals.

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 Aspen Plus Process Simulation

Model•  A process consists of chemical components being mixed, separated,

heated, cooled, and converted by unit operations. Thesecomponents are transferred from unit to unit through processstreams.

• We can translate a process into an Aspen Plus process simulationmodel

• With Aspen Plus we can interactively change specifications such as,flow sheet configuration; operating conditions; and feedcompositions, to run new cases and analyze process alternatives.

• Solves the critical engineering and operating problem that arisethroughout the lifecycle of a chemical process

• Designing a new process

• Troubleshooting a process unit

• Optimizing operation of a process

• Predict the behavior of a process

• Simulate just like an actual plant

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Translate a process to process

simulation model

• Define the process flow sheet

• Specify the chemical components in the process

• Specify thermodynamic models to represent the

physical properties of the components andmixtures in the process

• Specify the component flow rates and thethermodynamic conditions (for example,

temperature and pressure) of feed streams.• Specify the operating conditions for the unit

operation models

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 Aspen Plus Feature

• Flow sheet hierarchy and templates

• Equation oriented Modeling

• Thermo physical properties

• Convergence analysis

• Calculator model’s 

• Sensitivity analysis

• Case study feature

• Design specification