Simulation Software offers flowsheet design capabilities.

Press Release Summary:

Designed to address and solve complex challenges faced by process and design engineers, PRO/II v7.1, under SIM4ME common modeling framework, enables seamless transfer of data from PRO/II environment to ROMeo environment for online optimization and performance monitoring. It includes thermodynamics functionality for handling complex chemical systems, and PIPEPHASE multiphase flow simulation package for embedded upstream hydraulic network calculation.

Original Press Release:

Latest Version of PRO/II Simulation Software from SimSci-Esscor Delivers Enhanced Flowsheet Design and Process Optimization Capabilities

LAKE FOREST, Calif., USA -- December 14, 2005 -- The SimSci-Esscor unit of Invensys Process Systems has released Version 7.1 of its PRO/II steady-state flowsheeting and optimization simulation tool. A widely used standard throughout the Oil, Gas, and Hydrocarbon Processing Industries, the PRO/II program is designed to address and solve the complex challenges faced by today's process and design engineers.

The new version of PRO/II system provides significant new benefits for users through enhanced lifecycle modeling, improved productivity and support for open standards and third-party modeling integration. Under the SIM4ME common modeling framework, PRO/II Version 7.1 enables the seamless transfer of data from the PRO/II environment to the ROMeo environment for Online Optimization and Performance Monitoring. The SIM4ME framework also allows users to easily migrate flowsheets created in competitive products to the more advanced PRO/II environment.

Another significant PRO/II Version 7.1 feature is the integration of SimSci-Esscor's PIPEPHASE steady-state multiphase flow simulation package into PRO/II for embedded upstream hydraulic network calculation along with downstream process flowsheets. The interface supports recycle streams and integrated optimization, allowing rigorous modeling of the interactions between piping/production networks and associated processing facilities.

As previously announced, PRO/II now also provides integrated Rate-Based distillation technology via the RATEFRAC module as well integration with KG-TOWER design software from Koch-Glitsch.

Version 7.1 also includes new thermodynamics functionality for handling complex chemical systems plus several additional enhancements that can significantly improve engineering productivity by reducing model development and convergence time.

About Invensys Process Systems
Invensys Process Systems, a business unit of Invensys plc, provides products, services and solutions that enable today's industrial plants to monitor, manage, and improve the performance of their manufacturing assets. In addition to its rapidly expanding Global Solutions group, Invensys Process Systems includes industry-leading brands such as Foxboro, Triconex, SimSci-Esscor (, Wonderware, and Avantis, whose products are installed at more than 100,000 sites across the world. These range from small hybrid and batch plants to the world's largest production operations, refineries, gas plants, petrochemicals plants, power plants, and pulp and paper mills.

The Invensys Group ( is made up of five businesses: Process Systems, APV, Eurotherm, Rail Systems, and Controls. The Group is headquartered in London and is listed on the London Stock Exchange, with approximately 30,000 employees working in 60 countries.

Invensys, SimSci-Esscor, PIPEPHASE, and PRO/II are trademarks of Invensys plc, its subsidiaries and affiliated companies. All other brands and product noted herein are trademarks of their respective owners.

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