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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