Supramolecular Structure of Coals of the Metamorphism Series

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Resumo

The molecular structure characteristics of brown and hard coals of the metamorphism series were determined using IR spectroscopy. Based on the data of X-ray diffraction analysis and the kinetics of swelling in solvents, their supramolecular structure and the mechanism of molecular diffusion in the organic mass of coals were studied. Relationships between the supramolecular structure and molecular composition indices were established, and the structure evolution in the series of coal metamorphism was considered. It was found that tetrahydrofuran and quinoline molecules penetrated into the bulk of the organic mass of most coals by molecular Fickian diffusion complicated by steric hindrances of the microporous structure.

Sobre autores

P. Kuznetsov

Institute of Chemistry and Chemical Technology, Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences; School of Petroleum and Natural Gas Engineering, Siberian Federal University

Email: kuzpn@icct.ru
Krasnoyarsk, 660036 Russia; Krasnoyarsk, 660041 Russia

A. Obukhova

Institute of Chemistry and Chemical Technology, Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences; School of Petroleum and Natural Gas Engineering, Siberian Federal University

Email: kuzpn@icct.ru
Krasnoyarsk, 660036 Russia; Krasnoyarsk, 660041 Russia

S. Kositsyna

Institute of Chemistry and Chemical Technology, Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences; School of Petroleum and Natural Gas Engineering, Siberian Federal University

Email: skositsyna@sfu-kras.ru
Россия, 660036, Красноярск; Россия, 660041, Красноярск

L. Kuznetsova

Institute of Chemistry and Chemical Technology, Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences

Email: kuzpn@icct.ru
Krasnoyarsk, 660036 Russia

E. Kamenskii

Institute of Chemistry and Chemical Technology, Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences

Email: kuzpn@icct.ru
Krasnoyarsk, 660036 Russia

B. Avid

Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences

Autor responsável pela correspondência
Email: kuzpn@icct.ru
Ulan Bator, 14200 Mongolia

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Declaração de direitos autorais © П.Н. Кузнецов, А.В. Обухова, С.С. Косицына, Л.И. Кузнецова, Е.С. Каменский, Б. Авид, 2023