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Applications of Near-Infrared Spectroscopy in Refineries and Important Issues to Address

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This review primarily concerns NIR (near-infrared) applications in refineries. Initially, this article reviews the fundamental aspects for analysis of hydrocarbon mixture by NIR spectroscopy, such as spectral sensitivity in various spectral regions, signal-to-noise ratio, and spectral resolution. Though there are applications of NIR to diverse petroleum products, this review subsequently focuses only on applications to four major products: gasoline, diesel, naphtha, and crude oil, which are the most interesting from a refiner's viewpoint. In each application, discussion of important issues to consider for proper and optimal NIR measurement is included. Finally, the issue of calibration transfer is discussed.

Keywords: Near-infrared spectroscopy; calibration transfer; chemometrics; crude oil; diesel; gasoline; naphtha

Document Type: Research Article


Affiliations: Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul, Korea

Publication date: May 1, 2007


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