Use the highest fidelity engineering platform.
Aspen Plus provides the widest array of tools to construct and optimize process models including best-in-class physical properties, ability to handle solid, liquid, and gas processes, advanced electrolytes and equation oriented (E/O) modeling mode.
See how customers optimize with Aspen Plus.
Proven and measurable business benefits have been documented by a wide range of customers using Aspen Plus for chemical process design, chemical process modeling, and chemical process optimization.
Benefit from ongoing improvements to usability, innovation, and accuracy.
Aspen Plus, the industry's leading chemical process optimization software, is continually upgraded to improve performance and add new functionality—including solids modeling capabilities, leading pressure relief device sizing tools, activated analysis, and the ability to compare simulation and plant data in real time. This ensures an improved user experience with leading-edge accuracy in chemical process modeling.
Support the full range of process industries.
Aspen Plus boasts the world’s most extensive property database and handles solid, fluid and gas phase processes -- making it the best choice for chemicals, polymers, specialty chemicals, pharmaceuticals and biotech, biofuels, power, carbon capture, minerals, metals and mining.
Continuously improve chemical process designs with Activated Analysis.
Activated Analysis puts pinch analysis, economic evaluation, and equipment design tools at the finger tips of Aspen Plus users. Now, users can optimize chemical process designs using rigorous tools without being subject matter experts. Learn More about how Activated Analysis can reduce CAPEX & OPEX in chemical process designs by clicking below.
Extend functionality with layered applications.
Aspen Plus includes options to simulate polymer processes, batch distillation columns, and rate limited columns. With Aspen Custom Modeler, you can write additional unit operation models and use them inside Aspen Plus process modeling software. Use Aspen Plus Dynamics to evaluate process safety and operability, evaluate control strategies, or optimize grade and rate transitions.
Analyze, size, and document pressure relief devices in Aspen Plus.
New in V8.6, Relief Sizing in Aspen Plus ensures that proper relief valve and rupture disk sizing methods are used throughout overpressure analysis. Accepted industry standard API RP 520, 521 is implemented in Aspen Plus to calculate necessary relief device sizing specifications, including relief loads and orifice sizing.
Expand modeling to include solids.
Aspen Plus features rigorous modeling for solid streams and solids processing unit operations, making it easy to effectively model processes that involve both fluids and solids. Use solids modeling to avoid overdesign, reduce energy costs, improve product quality, and achieve higher throughputs. New in V8.4, new conceptual models make solids modeling more accessible to everyone. Solids Modeling has been enhanced for V8.2, V8.4, and V8.6.
Use Models to Support Plant Operations
Top energy and chemical companies have been using models to support plant operations. Models give deeper insight into column flooding, heat exchanger fouling, and how you might exceed your key performance indicators (KPI's). Use a simulator with Aspen Simulation Workbook (ASW) and Aspen Online to support plant operations for increased production efficiency and better process insight.
Upcoming Events
Wednesday, June 3, 2026
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Designing Distillation Columns with Confidence Using Aspen Plus®
Tuesday, June 9, 2026
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