Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2023

Идентификатор DOI: 10.3103/s0361521923040067

Ключевые слова: coals, molecular composition, supramolecular structure, diffusion

Аннотация: 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.

Журнал: Solid Fuel Chemistry

Выпуск журнала: Т.57, №3

Номера страниц: 147-156

ISSN журнала: 03615219

Место издания: Москва

Издатель: Allerton Press, Inc.

• Kuznetsov P. N. (School of Petroleum and Natural Gas Engineering, Siberian Federal University)
• Obukhova A. V. (School of Petroleum and Natural Gas Engineering, Siberian Federal University)
• Kositsyna S. S. (School of Petroleum and Natural Gas Engineering, Siberian Federal University)
• Kuznetsova L. I. (Institute of Chemistry and Chemical Technology, Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences)
• Kamenskii E. S. (Institute of Chemistry and Chemical Technology, Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences)
• Avid B. (Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences)

• Ядро РИНЦ (eLIBRARY.RU)