The handling of crude oil streams for FT-NIR (Fourier Transform Near-Infrared) analysis in refinery processes is critical for a well-designed Sample Conditioning System (SCS).
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Crude oil's complex properties, including variable viscosity, density, and the presence of particulates and emulsified water, present challenges that require careful management to ensure accurate measurements. The SCS must efficiently condition samples by filtering, cleaning, and maintaining temperature for reliable FT-NIR analysis.
In this article, you will explore the variability in crude oil quality, which complicates implementing a one-size-fits-all solution. Key challenges will also be examined, such as handling changes in viscosity and maintaining flow under pressure, particularly with heavy oils. You will also discover strategies, like maintaining optimal sample temperature to control viscosity and using Coriolis flow meters to handle varying densities and particulates effectively.
Another significant issue is the presence of particulates and water in crude oil streams, which can interfere with FT-NIR spectrum accuracy. Solutions such as staged filtration and coalescing filters help manage the removal of solids and water, ensuring measurement precision. The article also emphasizes the importance of maintaining the cleanliness of flow-through cell windows to prevent spectral interference, providing practical cleaning protocols and solvent options for refineries.
This information has been sourced, reviewed and adapted from materials provided by ABB Measurement & Analytics.
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