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Shalygin, A. S. Application of in situ ATR-FTIR sресtrоsсору for determination of wax aрреаrаnсе tеmреrаturе at high-prеssurе СО2 conditions / A. S. Shalygin, E. V. Morozov, O. N. Martyanov> // Pet. Chem. - 2022. - Vol. 62, Is. 10. - P. 1162-1170, DOI 10.1134/S0965544122100176. - Cited References: 39. - This study was funded by the Russian Science Foundation (project no. 21-13-00171, http://rscf.ru/project/21-13-00171/)
. - ISSN 0965-5441. - ISSN 1555-6239 Кл.слова (ненормированные): ATR -- FTIR spectroscopy -- paraffins -- wax appearance temperature (WAT) -- CO2 pressure Аннотация: Attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectroscopy was for the first time employed to investigate in situ paraffin crystallization under CO2 high-pressure and to evaluate a critical parameter—wax appearance temperature (WAT). To determine the WAT under pressure, conventional calculation methods based on changes in the band of rocking vibrations of CH2 group were used. Using model 10 wt % paraffin solutions in n-dodecane, temperature effects were investigated under CO2 pressures of 10, 20, 30, and 40 atm. It was experimentally confirmed that an increase in the CO2 pressure reduces the WAT. Furthermore, the plot of peak intensity of the spectral band attributed to dissolved CO2 as a function of temperature showed a maximum that can serve as an additional WAT indicator. This enhances the measurement accuracy and the reliability of WAT evaluation.
Смотреть статью, WOS, Читать в сети ИФ Публикация на русском языке Шалыгин А. С. Применение метода in situ ИК-Фурье-спектроскопии нарушенного полного внутреннего отражения для определения температуры начала кристаллизации парафинов под давлением СО2 [Текст] / А. С. Шалыгин, Е. В. Морозов, О. Н. Мартьянов // Нефтехимия. - 2022. - Т. 62 № 6. - С. 859-869
Держатели документа: Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences (BIC SB RAS), 630090, Novosibirsk, Russia Institute of Chemistry and Chemical Technology, Siberian Branch of Russian Academy of Sciences (ICCT SB RAS), Krasnoyarsk Scientific Center SB RAS, 660036, Krasnoyarsk, Russia L.V. Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences, Krasnoyarsk Scientific Center SB RAS, 660036, Krasnoyarsk, Russia Доп.точки доступа: Morozov, E. V.; Морозов, Евгений Владимирович; Martyanov, O. N. } Найти похожие
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