Geodesic
Potential of NMR method for the study of asphaltenes structural and dynamic organization in the condensed state
Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki, Kazanskii Gosudarstvennyi Universitet. Uchenye Zapiski. Seriya Fiziko-Matematichaskie Nauki, Tome 151 (2009) no. 3, pp. 41-51

Voir la notice du chapitre de livre provenant de la source Math-Net.Ru

The asphaltenes extracted from three different oils were studied by nuclear magnetic resonance (NMR) method. It was found that the transverse relaxation parameters for asphaltenes depend on the structural-group composition of the original oil. The part $P_s$ of the solid component characterized by a short transverse relaxation time $T_{2s}$ ($\sim10^{-5}$ s) is the main characteristic of the nuclear magnetic relaxation for asphaltenes in the condensed state. For studying structural and dynamic properties of asphaltenes the Solid-Echo pulse sequence ($90^\circ_{0^\circ}$ – $\tau$ – $90^\circ_{90^\circ}$ – $\tau$ – solid-echo signal) was mainly used. Basing on the comparative analysis of pulsed and continuous-wave NMR data it is concluded that the most correct information on the part $P_s$ could be obtained by the extrapolation to the time $\tau=0$ of exponential decomposition parameters for solid-echo signal at different values of time $\tau$.
Keywords: nuclear magnetic resonance, solid-echo pulse sequence, free induction decay, asphaltenes.
Mots-clés : solid-echo signal 
N. V. Shkalikov; V. D. Skirda. Potential of NMR method for the study of asphaltenes structural and dynamic organization in the condensed state. Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki, Kazanskii Gosudarstvennyi Universitet. Uchenye Zapiski. Seriya Fiziko-Matematichaskie Nauki, Tome 151 (2009) no. 3, pp. 41-51. http://geodesic.mathdoc.fr/item/UZKU_2009_151_3_a2/
@article{UZKU_2009_151_3_a2,
     author = {N. V. Shkalikov and V. D. Skirda},
     title = {Potential of {NMR} method for the study of asphaltenes structural and dynamic organization in the condensed state},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {41--51},
     year = {2009},
     volume = {151},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZKU_2009_151_3_a2/}
}
TY  - JOUR
AU  - N. V. Shkalikov
AU  - V. D. Skirda
TI  - Potential of NMR method for the study of asphaltenes structural and dynamic organization in the condensed state
JO  - Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki
PY  - 2009
SP  - 41
EP  - 51
VL  - 151
IS  - 3
UR  - http://geodesic.mathdoc.fr/item/UZKU_2009_151_3_a2/
LA  - ru
ID  - UZKU_2009_151_3_a2
ER  - 
%0 Journal Article
%A N. V. Shkalikov
%A V. D. Skirda
%T Potential of NMR method for the study of asphaltenes structural and dynamic organization in the condensed state
%J Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki
%D 2009
%P 41-51
%V 151
%N 3
%U http://geodesic.mathdoc.fr/item/UZKU_2009_151_3_a2/
%G ru
%F UZKU_2009_151_3_a2

[1] Safieva R. Z., Fizikokhimiya nefti. Fiziko-khimicheskie osnovy tekhnologii pererabotki nefti, Khimiya, M., 1998, 448 pp.

[2] Syunyaev Z. I., Safieva R. Z., Syunyaev R. Z., Neftyanye dispersnye sistemy, Khimiya, M., 1990, 224 pp.

[3] Aguilera-Mercado B., Herdes C., Murgich J., Müller E. A., “Mesoscopic simulation of aggregation of asphaltene and resin molecules in crude oils”, Energy Fuels, 20:1 (2006), 327–338 | DOI

[4] Chilingarian G. V., Yen T. F., Bitumens, asphalts and tar sands, Elsevier Scientific Publ. Co., Amsterdam, 1978, 331 pp.

[5] Joshi N. B., Mullins O. C., Jamaluddin A., Creek J., McFadden J., “Asphaltene Precipitation from Live Crude Oil”, Energy Fuels, 15:4 (2001), 979–986 | DOI

[6] Kalabin G. A., Kanitskaya L. V., Kushnarev D. F., Kolichestvennaya spektroskopiya YaMR prirodnogo organicheskogo syrya i produktov ego pererabotki, Khimiya, M., 2000, 407 pp.

[7] Shkalikov N. V., Ganeeva Yu. M., Yusupova T. N., Skirda V. D., “The characterization of asphaltenes by $^1\mathrm {H\ NMR}$ relaxation method: microsecond range of spin-spin relaxation times”, Magnetic Resonance in Solids. Electronic Journal, 10:1 (2008), 11–19

[8] Clark W. G., “Pulsed nuclear resonance apparatus”, Rev. Sci. Instrum., 35:3 (1964), 316–333 | DOI

[9] Peshkovsky A. S., Forguez J., Cerioni L., Pusiol D. J., “RF probe recovery time reduction with a novel active ringing suppression circuit”, J. Magn. Reson., 177:1 (2005), 67–73 | DOI

[10] Powles J. G., Mansfield P., “Double-pulse nuclear-resonance transients in solids”, Phys. Lett., 2:2 (1962), 58–59 | DOI

[11] Powles J. G., Strange J. H., “Zero time resolution nuclear magnetic resonance transients in solids”, Proc. Phys. Soc., 82:1 (1963), 6–15 | DOI

[12] Kimmich R., NMR tomography, diffusometry, relaxometry, Springer-Verlag, Berlin, 1997, 526 pp.

[13] Ryabushkin D. S., Sergeev N. A., “Issledovanie medlennykh molekulyarnykh dvizhenii po forme Solid-Ekha”, Izv. vuzov. Fizika, 1984, no. 12, 3–7

[14] Bilski P., Sergeev N. A., Wa̧sicki J., “Solid echo in the slow-motion region. Effects of the finite pulse widths”, Solid State NMR, 22:1 (2002), 1–18 | DOI

[15] Dickie J. P., Yen T. F., “Macrostructures of the asphaltic fractions by various instrumental methods”, Analyt. Chem., 39:14 (1967), 1847–1852 | DOI