The developed approaches to increasing the analytical selectivity by laser Raman spectroscopy and the use of chemometrics and a proprietary algorithm for self-tuning calibration models with the efficiency and speed of the method have shown a rare and excellent opportunity for informationally equivalent on-line control of all technological stages of the production of poly-α-olefin oils and other products through a network of fiber-optic probes. Oligomers of C6, C8, and C10 α-olefins obtained by heterogeneous chromium-oxide catalysis technology developed at LLC «RN-RD CENTER», as shown by the Raman spectra, differ from analogs obtained by homogeneous synthesis by the variety of unsaturated group structures and a greater width and variability of the molecular-mass distribution, which makes it possible to regulate a wide assortment of low- and high-molecular-mass products. A special case – the atypically high sensitivity of Raman spectra to the chain length – makes it possible during the synthesis to predict and adjust in real time the molecular mass of the oligomers and other target properties and to replace a fleet of traditional analytical equipment with one method.
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 5, pp. 45–51 September–October, 2022.
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Kuptsov, A.K., Zhmaeva, E.V., Kulik, A.V. et al. Laser Raman Spectroscopy – An Effective Method for Total Process Control of Poly-α-Olefin Oil Production. Chem Technol Fuels Oils 58, 772–778 (2022). https://doi.org/10.1007/s10553-022-01449-6
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DOI: https://doi.org/10.1007/s10553-022-01449-6