mriselMagnetic Resonance in SolidsMagnetic Resonance in Solids2072-5981Kazan Federal University10.26907/mrsej-26101mrisel-297Research ArticleСтатьиRapid evaluation of asphaltene-paraffin content in crude oil by solid-state NMRIvanovD. S.

Kazan 420008

f.ma.dima@mail.ruMelnikovaD. L.

Kazan 420008

AlexandrovA. S.

Kazan 420008

DoroginitskyM. M.

Kazan 420008

SkirdaV. D.

Kazan 420008

Kazan Federal UniversityRussian Federation20261103202628126101 (8 pp.)Copyright © Ivanov D.S., Melnikova D.L., Alexandrov A.S., Doroginitsky M.M., Skirda V.D., 20262026Ivanov D.S., Melnikova D.L., Alexandrov A.S., Doroginitsky M.M., Skirda V.D.Ivanov D.S., Melnikova D.L., Alexandrov A.S., Doroginitsky M.M., Skirda V.D.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.mrsej.ru/jour/article/view/297

The paper presents results demonstrating, using a series of crude oil samples, the negative impact of resin glass transition effects on the accurate determination of the solid-state component of the NMR signal attributed to crystalline paraffins. To address this issue, a modified NMR-based method for quantifying paraffins and asphaltenes is proposed. The approach involves separating the crystallization temperature of paraffins from the glass transition temperature of resins by plasticizing the resins through the preliminary addition of a specific amount of solvent or precipitant to the crude oil.

nuclear magnetic resonancesolid echoheavy oilscrude oilsasphaltenesparaffinsresinsReferencesIvanov D., Barskaya E., Skirda V., Magn. Reson. Solids 21, 19201 (2019).Ivanov D., Barskaya E., Skirda V., Magn. Reson. Solids 21, 19201 (2019).Dolomatov M., Rodionov A., Gafurov M., Petrov A., Biktagirov T., Bakhtizin R., Makarchikov S., Khairudinov I., Orlinskii S., Magn. Reson. Solids 18, 16101 (2016).Dolomatov M., Rodionov A., Gafurov M., Petrov A., Biktagirov T., Bakhtizin R., Makarchikov S., Khairudinov I., Orlinskii S., Magn. Reson. Solids 18, 16101 (2016).Shkalikov N., Ganeeva Y., Yusupova T., Skirda V., Magn. Reson. Solids 10, 11 (2008).Shkalikov N., Ganeeva Y., Yusupova T., Skirda V., Magn. Reson. Solids 10, 11 (2008).Shkalikov N., Skirda V., Arkhipov R., Magn. Reson. Solids 8, 38 (2006).Shkalikov N., Skirda V., Arkhipov R., Magn. Reson. Solids 8, 38 (2006).Suekuni M. T., D’Agostino C., Allgeier A. M., ACS catalysis 15, 2063 (2025).Suekuni M. T., D’Agostino C., Allgeier A. M., ACS catalysis 15, 2063 (2025).Mullins O. C., Sabbah H., Eyssautier J., Pomerantz A. E., Barr´ e L., Andrews A. B., Ruiz-Morales Y., Mostowfi F., McFarlane R., Goual L., Lepkowicz R., Cooper T., Orbulescu J., Leblanc R. M., Edwards J., Zare R. N., Energy & Fuels 26, 3986 (2012).Mullins O. C., Sabbah H., Eyssautier J., Pomerantz A. E., Barr´ e L., Andrews A. B., Ruiz-Morales Y., Mostowfi F., McFarlane R., Goual L., Lepkowicz R., Cooper T., Orbulescu J., Leblanc R. M., Edwards J., Zare R. N., Energy & Fuels 26, 3986 (2012).Volkov V. Y., Al-Muntaser A. A., Varfolomeev M. A., Khasanova N. M., Sakharov B. V., Suwaid M. A., Djimasbe R., Galeev R. I., Nurgaliev D. K., J. Petroleum Sci. Engin. 196, 107990 (2021).Volkov V. Y., Al-Muntaser A. A., Varfolomeev M. A., Khasanova N. M., Sakharov B. V., Suwaid M. A., Djimasbe R., Galeev R. I., Nurgaliev D. K., J. Petroleum Sci. Engin. 196, 107990 (2021).Shkalikov N. V., Study of heavy oils and their components by NMR, PhD thesis, Kazan (2010), [in Russian].Shkalikov N. V., Study of heavy oils and their components by NMR, PhD thesis, Kazan (2010), [in Russian].Powles J., Mansfield P., Phys. Lett. 2, 2 (1962).Powles J., Mansfield P., Phys. Lett. 2, 2 (1962).Zielinski L., Saha I., Freed D. E., Hurlimann M. D., Liu Y., Langmuir 26, 5014 (2010).Zielinski L., Saha I., Freed D. E., Hurlimann M. D., Liu Y., Langmuir 26, 5014 (2010).Hahn E. L., Phys. Rev. 77, 297 (1950).Hahn E. L., Phys. Rev. 77, 297 (1950).Powles J. G., Strange J. H., Proc. Phys. Society 82, 6 (1963).Powles J. G., Strange J. H., Proc. Phys. Society 82, 6 (1963).Sergienko S. R., High-molecular non-hydrocarbon compounds of oil (Nauka, Moscow, 1979) p. 269, [in Russian].Sergienko S. R., High-molecular non-hydrocarbon compounds of oil (Nauka, Moscow, 1979) p. 269, [in Russian].Bogomolov A. I., Gajle A. A., Gromova V. V., Drabkin A. E., Neruchev S. G., Proskuryakov V. A., Rozental’ D. A., Rudii M. G., Syroezhko A. M., Oil and Gas Chemistry (Khimiya, Saint Petersburg, 1995) p. 448, [in Russian].Bogomolov A. I., Gajle A. A., Gromova V. V., Drabkin A. E., Neruchev S. G., Proskuryakov V. A., Rozental’ D. A., Rudii M. G., Syroezhko A. M., Oil and Gas Chemistry (Khimiya, Saint Petersburg, 1995) p. 448, [in Russian].

The authors declare that there are no conflicts of interest present.