Consistent and Reliable Results

The process industries are characterized by a wide range of highly complex processes. It is important to have access to the latest

and most exhaustive set of physical properties to ensure accuracy and consistency in simulation results.

A robust yet flexible physical properties system is the foundation of process modeling. Inaccurate property calculations cause

errors in simulation results, which lead to errors in equipment sizing, poor designs, and subsequent operational problems,

besides impacting capital and operating costs.

Aspen Properties addresses these challenges by providing an extensive set of out-of-the-box parameters, significantly expanding

the reach of process modeling to processes that previously were difficult to model.

Aspen Properties®

The industry standard for thermophysical properties

Aspen Properties provides state-of-the-art physical property methods, models, algorithms, and datafor chemists and engineers. Quickly check the properties of pure components or mixtures on yourdesktop or through the built-in web interface. Users can also include Aspen Properties’ calculationswithin Microsoft Excel® spreadsheets, facilitating the deployment of consistent physical property dataand knowledge across the enterprise.

Key Benefits• Enables all chemists, engineers, and

technologists in the enterprise to accessthe industry standard for thermophysicalproperty calculations

• Ensures consistent, reliable resultsthroughout the product and process lifecyclethrough the use of the same rigorous,proven thermophysical property models anddata across all engineering applications

The Aspen Properties Excel add-in provides powerful access tophysical properties and equilibrium calculations, which enablescreation of custom applications (e.g., flammability analysis) quickly.

Worldwide Headquarters

Aspen Technology, Inc.200Wheeler RoadBurlington, MA 01803

phone: +1-781-221-6400fax: +1-781-221-6410info@aspentech.com

EMEA Headquarters

AspenTech Ltd.C1, Reading Int’l Business ParkBasingstoke RoadReading UKRG2 6DT

phone: +44-(0)-1189-226400fax: +44-(0)-1189-226401ATE_info@aspentech.com

APAC Headquarters

AspenTech - Shanghai3rd Floor, North WingZhe DaWang Xin Building2966 Jin Ke RoadZhangjiang High-Tech ZonePudong, Shanghai201203, China

phone: +86-21-5137-5000fax: +86-21-5137-5100apac_marketing@aspentech.com

aspenONE Process Engineering

Aspen Properties is a key component of aspenONE Process Engineering for the process industries.

aspenONE Process Engineering is an integrated lifecycle solution—from conceptual design through

to plant start-up and operations support—enabling you to model, build, and operate safer,

competitive, and more reliable process plants. Companies are able to reduce capital and operating

costs, increase engineering efficiency and quality, and accelerate time-to-market with payback in

months instead of years.

About AspenTech

AspenTech is a leading supplier of software that optimizes process manufacturing—including oil and

gas, petroleum, chemicals, pharmaceuticals 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, visitwww.aspentech.com.

© 2008 Aspen Technology, Inc. AspenTech®, aspenONE™, and the Aspen leaf logo are trademarks or registeredtrademarks of Aspen Technology, Inc. All rights reserved. 1553-10-1208

Key Technical Features• TheAspen Engine includes:

- Extensive pure component and binary parameter databanks

- Direct links to the National Institute of Standard and Technology (NIST) Source Databasecontaining over 1 million points of experimental data for over 17,000 pure components

- The NIST Thermo Data Engine (TDE) system for evaluating properties using NISTexperimental data and estimations from thermodynamically consistent methods

- Comprehensive library of thermophysical and transport property models

- Built-in parameter estimation and data regression capabilities

- Internet link to DETHERM® data

- Mathematical algorithms and analysis tools

- Interface with third party applications through CAPE-OPEN COM thermodynamic,Microsoft automation and FORTRAN interfaces

• TheMicrosoft Excel® Calculator Add-In provides access through simple function calls,facilitating the reuse and deployment of physical property knowledge throughout theenterprise. It supports:

- Thermophysical and Transport Properties: fugacity and activity coefficients, molarenthalpy, molar entropy, molar volume, viscosity, thermal conductivity, etc.

- Phase-Equilibrium Calculations: bubble point, dew point, temperature-pressure flash,temperature-vapor fraction flash, pressure-vapor fraction flash, temperature-enthalpyflash, pressure-enthalpy flash and salt precipitation

• TheWebApplication enables easy access via a web browser and supports pure-componentproperty calculations, binary phase equilibrium analysis for Txy and Pxy diagrams, andmixture property analysis with or without flash.

• Aspen SolubilityModeler is a data regression and analysis tool that enables users to useexperimental data to enhance solubility analyses. It provides a unique and powerfulmolecular thermodynamic foundation for physical property modeling and prediction of newpharmaceutical compounds across varied settings and myriad complexities.

For complete technical features, visitwww.aspentech.com/products/aspen-properties.cfm.