Aspen HYSYS^®

Maximize safety, sustainability and profits by optimizing the entire site in one environment using industry-validated simulation and time-saving workflows.

The Industry's #1 Process Simulation Software

Comprehensive for the Energy Industry

Optimize upstream, midstream, refining and crude oil-to-chemicals processes in one environment. Integrate models from gathering networks to processing facilities. Sustain refinery profits with faster updates to planning models.

Intuitive, Time-Saving Workflows

Enhance a process engineer's workflow with seamless, integrated tools for equipment design, costing, energy management, safety analysis and sustainable operations.

Powerful Optimization with AI

Create high fidelity, AI-powered models that enable tighter collaboration across functions and optimize increasingly complex assets to achieve multiple objectives, leveraging high performance computing.

Most Trusted Process Simulator

Rely on the industry's preferred process simulator, trusted for over 40 years and make informed decisions from design through operations. Experience the latest innovations in process simulation.

Aspen Hybrid Models™

Democratize the application of AI to solve the process industry’s most difficult problems:

Address problems that cannot be solved with first principles models alone
Build better models faster
Sustain accurate models longer
Improve predictive insights

Learn More

Award-Winning AI Technology

Best Modeling Technology Award - Aspen HYSYS

Hydrocarbon Processing names Aspen HYSYS^® “Best Modeling Technology”

As the industry’s premier process simulation solution for oil and gas operations, Aspen HYSYS was recognized by Hydrocarbon Processing in the category of “Best Modeling Technology.” The magazine cited advancements such as alignment of planning with operations, more streamlined workflows and use of real-time data to enhance operator training.

Applications

Bulk Chemicals

Distillation Improvement

Restore smooth and optimal column performance. Increase column efficiency and resolve issues faster with interactive hydraulic visualization of distillation.

4 videos in gallery

Energy Management

Optimize energy Use. Predict and eliminate energy waste though use of an integrated design and modeling tools.

5 videos in gallery

Process Safety Analysis

Reduce conservatism and engineering time using the complete overpressure protection solution with expert-trusted solutions and guided workflows.

5 videos in gallery

Downstream

Acid Gas Removal Optimization

Optimize design and lower energy cost while meeting specifications with predictive, rate-based models and specialized physical properties.

5 videos in gallery

Crude Flexibility Analysis

Quickly analyze the feasibility of crude blends through accurate determination of stream yields and properties at any point in the refinery process.

5 videos in gallery

Energy Management

Optimize energy Use. Predict and eliminate energy waste though use of an integrated design and modeling tools.

5 videos in gallery

Integrated CDU & Preheat Train Optimization

Meet product demands and simultaneously reduce energy consumption with a single solution to optimize the entire crude distillation unit operation.

5 videos in gallery

Maintaining Planning Tools

Maintain refinery margins by updating refinery planning models with streamlined workflows using a process simulation solution calibrated to plant data.

5 videos in gallery

Monitoring Heat Exchanger Fouling

Improve plant efficiency by optimizing HX operations.

5 videos in gallery

Sulfur Recovery Unit Optimization

Increase production, reduce OPEX and meet regulations by modeling the complexities of the SRU and the full gas plant.

5 videos in gallery

Engineering, Procurement & Construction

Bidding & Cost Estimation

Minimize estimating risk and develop bids faster through the improved consistency and accuracy of an integrated, model-based estimating system.

5 videos in gallery

Distillation Design & Revamps

Cut CAPEX and prevent issues by selecting optimal trays and packings with interactive plots built using correlations and process simulation data.

5 videos in gallery

Dynamic Studies

Hone your understanding of operational changes through dynamic insights with trusted accuracy and built-in templates to get started.

5 videos in gallery

FEED Execution

Reduce FEED package preparation time and decrease rework by allowing engineering design changes to propagate consistently through interconnected FEED tools.

5 videos in gallery

Integration with Detailed Engineering

Optimize CAPEX and minimize bidding and estimating risk. Deliver bids with optimized designs faster, with less rework and errors through an integrated model based estimating tool from concept design t...

0 videos in gallery

Monitoring Heat Exchanger Fouling

Improve plant efficiency by optimizing HX operations.

5 videos in gallery

Operations Decision Support

Increase throughput and operating efficiency through data-driven decisions enabled by plant-calibrated predictive models in an operator-friendly interface.

5 videos in gallery

Operator Training Simulator Deployment

Train operators for startups, shutdowns and complex operational changes. Deploy trusted, maintainable operator training simulator (OTS) solutions sooner using dynamic simulation, trusted for its accur...

0 videos in gallery

Process Safety Analysis

Reduce conservatism and engineering time using the complete overpressure protection solution with expert-trusted solutions and guided workflows.

5 videos in gallery

Project Cost Estimation

Improve transparency and lower CAPEX though use of a shared model-based estimating platform from conceptual engineering through construction.

5 videos in gallery

Tuning Models with Plant Data

Models that match reality by calibrating them to plant data for improved design and revamp with process understanding through validation with historical data.

5 videos in gallery

Equipment Manufacturer

Monitoring Heat Exchanger Fouling

Improve plant efficiency by optimizing HX operations.

5 videos in gallery

Midstream & LNG

Acid Gas Removal Optimization

Optimize design and lower energy cost while meeting specifications with predictive, rate-based models and specialized physical properties.

5 videos in gallery

Dehydration Process Optimization

Prevent quality issues that limit dehydration operations and cost additional solvent and energy input using the latest in water-gas-glycol modeling.

5 videos in gallery

Energy Management

Optimize energy Use. Predict and eliminate energy waste though use of an integrated design and modeling tools.

5 videos in gallery

Gas Compression Analysis

Optimize compression without risking failure. Make changes to compressor operations with the accuracy and ease provided by dynamic compressor templates.

5 videos in gallery

Integrated LNG Process Improvement

Increase efficiency with insights into the operation of liquefaction processes through rigorous heat exchanger models leveraging full process simulation.

5 videos in gallery

Operations Decision Support

Increase throughput and operating efficiency through data-driven decisions enabled by plant-calibrated predictive models in an operator-friendly interface.

5 videos in gallery

Sulfur Recovery Unit Optimization

Increase production, reduce OPEX and meet regulations by modeling the complexities of the SRU and the full gas plant.

5 videos in gallery

Specialty Chemicals

Energy Management

Optimize energy Use. Predict and eliminate energy waste though use of an integrated design and modeling tools.

5 videos in gallery

Upstream

Energy Management

Optimize energy Use. Predict and eliminate energy waste though use of an integrated design and modeling tools.

5 videos in gallery

Gas Compression Analysis

Optimize compression without risking failure. Make changes to compressor operations with the accuracy and ease provided by dynamic compressor templates.

5 videos in gallery

Operations Decision Support

Increase throughput and operating efficiency through data-driven decisions enabled by plant-calibrated predictive models in an operator-friendly interface.

5 videos in gallery

Pipe Flow Hydraulic Analysis

Understand pressure drops to maximize flow and mitigate the risk of flow assurance issues through network modeling with built-in flow assurance analyses.

5 videos in gallery

View All

Acid Gas Removal Optimization

Optimize design and lower energy cost while meeting specifications with predictive, rate-based models and specialized physical properties.

5 videos in gallery

Bidding & Cost Estimation

Minimize estimating risk and develop bids faster through the improved consistency and accuracy of an integrated, model-based estimating system.

5 videos in gallery

Crude Flexibility Analysis

Quickly analyze the feasibility of crude blends through accurate determination of stream yields and properties at any point in the refinery process.

5 videos in gallery

Dehydration Process Optimization

Prevent quality issues that limit dehydration operations and cost additional solvent and energy input using the latest in water-gas-glycol modeling.

5 videos in gallery

Distillation Design & Revamps

Cut CAPEX and prevent issues by selecting optimal trays and packings with interactive plots built using correlations and process simulation data.

5 videos in gallery

Distillation Improvement

Restore smooth and optimal column performance. Increase column efficiency and resolve issues faster with interactive hydraulic visualization of distillation.

4 videos in gallery

Dynamic Studies

Hone your understanding of operational changes through dynamic insights with trusted accuracy and built-in templates to get started.

5 videos in gallery

Energy Management

Optimize energy Use. Predict and eliminate energy waste though use of an integrated design and modeling tools.

5 videos in gallery

FEED Execution

Reduce FEED package preparation time and decrease rework by allowing engineering design changes to propagate consistently through interconnected FEED tools.

5 videos in gallery

Gas Compression Analysis

Optimize compression without risking failure. Make changes to compressor operations with the accuracy and ease provided by dynamic compressor templates.

5 videos in gallery

Heat Exchanger Design

Select the optimum heat exchanger size and rating when both cost and performance must be balanced through rigorous up-to-date integrated modeling capabilities.

5 videos in gallery

Integrated CDU & Preheat Train Optimization

Meet product demands and simultaneously reduce energy consumption with a single solution to optimize the entire crude distillation unit operation.

5 videos in gallery

Integrated LNG Process Improvement

Increase efficiency with insights into the operation of liquefaction processes through rigorous heat exchanger models leveraging full process simulation.

5 videos in gallery

Integration with Detailed Engineering

0 videos in gallery

Maintaining Planning Tools

Maintain refinery margins by updating refinery planning models with streamlined workflows using a process simulation solution calibrated to plant data.

5 videos in gallery

Monitoring Heat Exchanger Fouling

Improve plant efficiency by optimizing HX operations.

5 videos in gallery

Operations Decision Support

Increase throughput and operating efficiency through data-driven decisions enabled by plant-calibrated predictive models in an operator-friendly interface.

5 videos in gallery

Operator Training Simulator Deployment

0 videos in gallery

Performance Management

Increase agility and responsiveness to production problems through real-time monitoring of business metrics via dashboards, alerts, and pattern matching.

5 videos in gallery

Pipe Flow Hydraulic Analysis

Understand pressure drops to maximize flow and mitigate the risk of flow assurance issues through network modeling with built-in flow assurance analyses.

5 videos in gallery

Process Safety Analysis

Reduce conservatism and engineering time using the complete overpressure protection solution with expert-trusted solutions and guided workflows.

5 videos in gallery

Project Cost Estimation

Improve transparency and lower CAPEX though use of a shared model-based estimating platform from conceptual engineering through construction.

5 videos in gallery

Refinery Blending

Reduce off-spec blends and quality giveaway by simultaneously optimizing multi-period blends for short and long-term campaigns.

5 videos in gallery

Refinery Planning

Optimize feedstock, products and production plans in your refineries faster and with higher accuracy through our proven, proprietary PIMS-AO solver.

5 videos in gallery

Refinery Scheduling

Improve responsiveness and decision-making with refinery-wide scheduling that schedules all key activities from within a single platform to increase production.

5 videos in gallery

Sulfur Recovery Unit Optimization

Increase production, reduce OPEX and meet regulations by modeling the complexities of the SRU and the full gas plant.

5 videos in gallery

Tuning Models with Plant Data

Models that match reality by calibrating them to plant data for improved design and revamp with process understanding through validation with historical data.

5 videos in gallery