AspenTech Acquires Sulsim Software from Sulphur Experts

April 1, 2014

Will Add Sulfur Recovery Simulation Technology to aspenONE® Engineering Software
Burlington, MA -

 Aspen Technology, Inc. (NASDAQ: AZPN), a leading provider of software and services to the process industries, announced it has acquired Sulsim® sulfur simulation software from Sulphur Experts.  The Sulsim sulfur recovery product has been used by the world’s leading energy companies for over 25 years.

Sulfur recovery is performed in almost every refinery and gas plant processing high sulfur feeds.  Regulatory policies require the removal of sulfur from gas produced by these plants.  With Sulsim, process engineers can model the reaction furnace, reactors, incinerator, and other related operations of sulfur recovery plants accurately.  Because this is the last step in acid gas cleaning, accurate modeling is essential since any disturbance will bottleneck the process flow causing reduced throughput and heavy losses.

AspenTech’s Aspen HYSYS® software, a leading simulation solution for the energy industry, already provides modeling capabilities for process equipment and for acid gas cleaning systems.  Sulsim technology will allow AspenTech customers for the first time to optimize acid gas cleaning and sulfur recovery design and operations together.  Potential benefits for refiners and gas processors from using a single engineering environment include improved efficiency, capital savings, safer operation, and minimized operating costs.

Terms of the transaction were not disclosed.

Supporting Quotes

Antonio Pietri, President & CEO, AspenTech

“Building on recent new innovations in aspenONE Engineering, such as acid gas cleaning, we believe that sulfur recovery simulation technology will drive significant new value for refiners and gas processors.  We will continue to make investments that extend our technology lead and enable our customers to generate additional benefits from process optimization.”

Supporting Resources

aspenONE Engineering products


About AspenTech

AspenTech is a leading supplier of software that optimizes process manufacturing – for energy, chemicals, pharmaceuticals, engineering and construction, and other industries that manufacture and produce products from a chemical process.  With integrated aspenONE solutions, process manufacturers can implement best practices for optimizing their engineering, manufacturing and supply chain operations.  As a result, AspenTech customers are better able to increase capacity, improve margins, reduce costs and become more energy efficient.  To see how the world’s leading process manufacturers rely on AspenTech to achieve their operational excellence goals, visit


NOTE: Aspen Technology may provide information regarding possible future product developments including new products, product features, product interfaces, integration, design, architecture, etc. that may be perceived to represent “product roadmaps.”  Any such information is for discussion purposes only and does not constitute a commitment by Aspen Technology to do or deliver anything in these product roadmaps or otherwise.  Any such commitment must be explicitly set forth in a written contract between the customer and Aspen Technology, executed by an authorized officer of each company.



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