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OLI Systems Unveils OLI Platform v12.5

In a significant advancement for the industrial chemistry sector, OLI Systems announced on October 9, 2025, the release of OLI Platform v12.5. This latest version introduces three groundbreaking features aimed at enhancing precision and efficiency in process modeling, specifically with the integration of modular sub flowsheets, extended corrosion modeling capabilities, and a significantly updated chemistry database.

Modular Sub Flowsheets for Improved Efficiency

One of the most notable enhancements in version 12.5 is the introduction of sub flowsheets into the OLI Flowsheet ESP environment. This feature allows engineers to incorporate smaller, reusable models within larger simulations. As Dr. Susanna Holt, Chief Technology Officer of OLI, remarked, this modular approach enables engineering teams to construct once and utilize everywhere. This results in reduced redundancy, enhanced convergence, and a standardization of modeling practices across diverse global teams. Such improvements not only streamline large flowsheets but also boost overall solver performance.

Enhanced Corrosion Prediction Framework

Corrosion prediction has taken a significant leap forward with the expansion of the MSE corrosion framework, initially launched in version 12. The framework now includes five additional alloys: martensitic stainless steels S13Cr, S15Cr, and S17Cr, austenitic stainless steel 316, and nickel-base Alloy 625. This expansion enables engineers to simulate material performance in environments rich in CO₂, sour conditions, and at high temperatures—conditions that previously necessitated assumptions or approximations. This capability is crucial for accurately modeling the durability and integrity of materials used in challenging industrial applications.

A Broadened Chemistry Database

The updated chemistry database is another significant feature of this version. OLI Systems has added hundreds of new chemical species to the database. Key additions include monoethylene glycol (MEG) for upstream oil and gas applications, hydrogen (H₂), nitrogen (N₂), carbon dioxide (CO₂), and various light hydrocarbons interacting with substances such as water (H₂O), sulfuric acid (H₂SO₄), and nitric acid (HNO₃) for Carbon Capture, Utilization, and Storage (CCUTS). These additions also encompass thiosulphuric acid and calcium malate for refining processes, with new data for antimony sulfide for geothermal scaling, and further insights for cobalt, lithium, and rare earth elements in recycling and recovery processes.

Real-World Applications and Benefits

Trevor MacMaster, Chief Client Officer, emphasized that version 12.5 lays a stronger foundation for engineers who rely on accurate chemical modeling to make critical decisions. With the broadened alloy coverage and enhanced database capabilities, clients are now better equipped to tackle real-world challenges with clarity and precision. The continuous improvements to the platform not only meet the evolving needs of the industry but also uphold OLI Systems’ commitment to innovation in chemical modeling.

Immediate Availability

OLI Systems v12.5 is now available for desktop, engine, and cloud deployments. For those interested in learning more about this latest version including detailed feature sets and upgrade guidance, further information can be found on www.olisystems.com.

About OLI Systems

With a longstanding reputation in the industry, OLI Systems specializes in simulation software aimed at managing complex chemical challenges. Delivering predictive models and cloud solutions, along with expert consulting, OLI has supported industrial operations for decades, helping teams minimize risk and enhance operational efficiency. By integrating cutting-edge technology with vast industry experience, OLI Systems remains a trusted partner for engineers navigating the complexities of industrial chemistry.