January 2017

Process Control and Instrumentation

Novel configuration for near-IR analysis of refinery LPG composition and control

Near-infrared (NIR) spectroscopy is a powerful tool that is in widespread use in the refining, chemical, pharmaceutical and agricultural industries. NIR spectroscopic process analyzers are commonly used in refineries for a variety of composition and physical property measurements, such as octane number, aromatics content and distillation properties of feed and finished products.

Foulk, S., Guided Wave Inc.; Mistry, S., Suncor Energy Inc.

Near-infrared (NIR) spectroscopy is a powerful tool that is in widespread use in the refining, chemical, pharmaceutical and agricultural industries. NIR spectroscopic process analyzers are commonly used in refineries for a variety of composition and physical property measurements, such as octane number, aromatics content and distillation properties of feed and finished products. These methods use chemometric modeling techniques to extract relevant information from NIR spectral data. Such techniques have been in use for more than 30 years. Despite their widespread use, there are few published instances of using NIR spectroscopy to measure the composition of liquefied petroleum gas (LPG). LPG

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