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Aspen Inferential Qualities

(formerly Aspen IQ)

Create and deploy online inferential sensors

Aspen Inferential Qualities enables modeling and implementation of inferred product qualities, and makes it possible to implement linear or non-linear inferential sensors on-line. Inferential sensors are fundamental elements of many advanced process control systems. Key parameters (such as naphtha 95% point and polymer melt index) are often inferred rather than directly measured. Aspen Inferential Qualities is a core element of AspenTech’s aspenONE® Advanced Process Control applications.

Features

  • On-line features
    • Built-in steady-state detector
    • Detector can be stand-alone or integrated with Aspen DMCplus® and Aspen InfoPlus.21®
    • Provides both analyzer and lab model updating
    • Wide range of DCS and information system interfaces available
    • Enabled for remote monitoring
    • No code generation or programming required
  • Off-line features
    • A broad suite of tools for developing inferential sensors: PLS, fuzzy PLS, neural-network, and linearized rigorous-model-based approaches
    • Graphical Analysis Tools for Model Evaluation
    • Model building tools such as variable selection, dead-time detection, and dynamics analysis
    • Prediction libraries allow for future expansion (e.g., with process-specific models)
  • Data pre-processing features
    • Supports multiple files
    • Allows graphical and numeric cutting of bad data
    • Allows interpolation for replacing bad or missing data
    • Allows averaging of training data to support cumulative lab samples
  • Supported Model Types
    • Linear PLS
    • Fuzzy PLS
    • Hybrid Neural Net (HNN)
    • Linearized Rigorous Models
    • Algebraic and FIR Models

Benefits

  • Validates instrumentation and provides early detection of drift or malfunction
  • Augments or replaces physical instrumentation for process measurements
  • Improves control by providing feedback between lab samples
  • Reduces lab costs
  • Improves models via software-assisted variable selection
 

Now Available

7.2 Release Now Available

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Product Name Changes

With the release of aspenONE V7, we have renamed many of our products to be more descriptive for new users. Click here to learn more

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