Aspen HYSYS®

Maximize safety, throughput 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 and refining 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

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

Powerful Optimization with AI

Create more accurate, AI-powered models by enabling tighter collaboration across functions and optimizing increasingly complex assets to achieve multiple objectives simultaneously.

Most Trusted Process Simulator

Rely on the industry's preferred process simulator, trusted for nearly 40 years and make informed decisions from design through operations. Experience the latest innovations in process simulation.
Whats new in V12.2
Accelerate digitalization to achieve sustainability goals and drive operational excellence.

Hybrid Models

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

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Award-Winning AI Technology
Best Modeling Technology Award - Aspen HYSYS

Hydrocarbon Processing names Aspen HYSYS® “Best Modeling Technology” for 2020

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

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Introducing aspenONE Engineering deployment in the cloud: Access the latest software anytime, anywhere

aspenONE Engineering software is now available for cloud deployment! aspenONE Engineering deployment in the cloud accelerates deployment and lowers the total cost of ownership for IT departments and allows user access to the latest aspenONE Engineering innovations anytime, anywhere, through a web browser.

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Hybrid Models in Energy: Leveraging Industrial AI to Overcome Operational Challenges

A breakthrough innovation, Aspen Hybrid Models™ help energy companies quickly develop comprehensive, accurate models to address the most complex operational challenges. With the release of aspenONE® V...

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Webinar: Digital Twins to the Rescue for Refinerie

Digital Twins to the Rescue: How Refineries can Quickly Gain Value in Current Market

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Video Case Study: How Middle East Refinery Solves Crude Distillation Issues

Learn how AspenTech Solutions Helped Fix Operational Issues with a Major Refiner's CDU

Learn how a major Middle East Refinery used AspenTech solutions to address operational issues with their crude distillation unit (CDU). This video highlights how the detailed hydraulic analysis capabi...

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Aspen Hybrid Models™ - A Closer Look

In a volatile, changing world, companies must rethink how they will compete and stay ahead. Advancements in AI and process simulation combined with deep domain expertise empower companies to do things...

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Aspen HYSYS for Oil and Gas

Complete the picture with Aspen HYSYS®

From oil and gas production to refining, gas treatment and liquefaction, Aspen HYSYS streamlines engineering and provides valuable insights to save organizations CAPEX, OPEX and engineering time. View...

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Validation of BLOWDOWN Technology in Aspen HYSYS

Validation of BLOWDOWN Technology in Aspen HYSYS

See how the results of BLOWDOWN Technology in Aspen HYSYS compare with published results.

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Discover How Chevron Saved Significant CAPEX on a Staggered Blowdown Project

Learn how Chevron confidently kept their platform’s flare loadings under capacity limits using a staggered BDV opening sequence to eliminate the need for an estimated $30M USD in flare system CAPEX.

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Application Video

Aspen How-To

Looking for quick demonstrations on using AspenTech products to solve your engineering and operations challenges? Browse this compilation of bite-sized videos produced by AspenTech experts covering all our major solutions.

Aspen Self-Paced eLearning

Aspen Self-Paced eLearning

Find on-demand training for applying AspenTech products to your complex process engineering and operational problems. Our comprehensive eLearning courses, created by AspenTech experts, offer self-guided learning paths for all our major solutions.

Aspen Expert-Led Training

Aspen Expert-Led Training

We offer comprehensive libraries of classroom and virtual expert-led training courses for our process engineering and operational solutions. All courses are created and produced by AspenTech experts.

Competency Development

Designed to meet industry standards and company-specific goals, AspenTech’s competency development program helps you build and sustain in-house expertise by leveraging flexible training options—including certification—and measuring organizational competency against industry benchmarks.