Email this article ESR Analysis of Industrial Needle-Coke Samples
- Authors: Ismagilov Z.R.1,2, Nikitin A.P.1, Valnyukova A.S.1, Mikhaylova E.S.1, Zaporin V.P.3, Galyautdinov A.G.3
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Affiliations:
- Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences
- Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences
- Ufa State Petroleum Technological University
- Issue: Vol 62, No 3 (2019)
- Pages: 89-94
- Section: Coke
- URL: https://journals.rcsi.science/1068-364X/article/view/226761
- DOI: https://doi.org/10.3103/S1068364X19030037
- ID: 226761
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Abstract
Industrial needle-coke samples are studied. Their paramagnetic characteristics are determined over a broad range of magnetic fields. For some samples, no pronounced signal from the microwave resonator is observed. This indicates that the conversion of the molecular structure to coke is complete in those samples. For some samples, the ESR spectra contain two sharply resolved signals from centers associated with aliphatic and aromatic fragments. That indicates incomplete structural transformation.
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About the authors
Z. R. Ismagilov
Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences; Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences
Author for correspondence.
Email: zinfer1@mail.ru
Russian Federation, Kemerovo; Novosibirsk
A. P. Nikitin
Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences
Author for correspondence.
Email: nikitinandreyp@yandex.ru
Russian Federation, Kemerovo
A. S. Valnyukova
Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences
Author for correspondence.
Email: nastya711@bk.ru
Russian Federation, Kemerovo
E. S. Mikhaylova
Federal Research Center of Coal and Coal Chemistry, Siberian Branch, Russian Academy of Sciences
Author for correspondence.
Email: e_s_mihaylova@mail.ru
Russian Federation, Kemerovo
V. P. Zaporin
Ufa State Petroleum Technological University
Author for correspondence.
Email: inftek@yandex.ru
Russian Federation, Ufa
A. G. Galyautdinov
Ufa State Petroleum Technological University
Author for correspondence.
Email: airatg@mail.ru
Russian Federation, Ufa
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