Aspen Adsim®

A comprehensive flowsheet simulator for the optimal design, simulation, optimization, and analysis of industrial gas and liquid adsorption processes

Aspen Adsim enables process simulation and optimization for a wide range of industrial gas and liquid adsorption processes, including reactive adsorption, ion exchange, and cyclic processes such as pressure-swing, temperature-swing, and vacuum-swing adsorption. It is used to select optimal adsorbents, design better adsorption cycles, and improve general plant operations. Aspen Adsim is a core element of AspenTech’s aspenONE™ Process Engineering applications.

Features

  • Rigorous Rate-Based Adsorbent Bed Model
    • Various geometries including axial column, horizontal beds, and radial beds
    • Options to include axial dispersion in the material balance
    • Wide range of kinetic models including lumped resistance, micro/macro-pore, and general rate model
    • Wide range of standard equilibrium/isotherm models that allow for either pure component or multi-component/competitive behavior
    • Highly configurable energy balance to account for non-isothermal behavior, conduction, heat loss, and wall effects
  • Unique Cyclic Steady-State Modeling Paradigm allows use of steady-state estimation and optimization techniques for rapid design and optimization of cycles
  • Cycle Management
    • User can define any number of independently operated cycles, each containing any number of process steps (e.g., production, purge, equalization, and repressurization)
    • Process steps can be controlled by timer or by monitored events
    • Steps or ramped changes can be imposed on manipulated variables
  • Parameter Estimation tools that allow engineers to fit the models against various types of experimental and plant data
  • Rigorous Physical Properties through integration with Aspen Properties; it includes extensive databases of pure component and phase equilibrium data for a wide range of components
  • Compatible with Aspen Dynamics®, enabling the simulation of equipment upstream and downstream of the adsorption section

Benefits

Aspen Adsim is a proven, industry-standard solution for simulating a wide range of adsorption processes. Customers have recognized and reported:

  • 25% increase in product yield through process optimization
  • Capacity doubled through the development of a new PSA scheme
  • Cost savings during process development by supplementing laboratory and pilot plant trials with process modeling
  • Improved process understanding by applying validated Aspen Adsim models to explore the operating envelope
  • Improved process design through testing of alternatives before committing to a fixed design
  • Improved plant operations by using the same Aspen Adsim models to identify optimal operating procedures, thus ensuring reliable process operation

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