Specific modification of salty coals by means of oil agglomeration
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Дата
1996
ORCID
DOI
Науковий ступінь
Рівень дисертації
Шифр та назва спеціальності
Рада захисту
Установа захисту
Науковий керівник
Члени комітету
Видавець
Анотація
The phenomenon of coal modification at oil ag- glomeration has been studied, specifically, changing of its structure and physical-chemical properties of surface. It was established:- agglomeration process of coal with size 0-1(3)mm is accompaning by direct adhesive contact of “coal-oil” on 75-80 % from external surface of coal. The high power chemical bonds are formed together with physical bondes in the interphase zone. This modification lead to the increasing hydropho-bity of coal surface and the contrastance of mozaic liophylic-liophobic picture.
- internal surface of coal is hydrophobized by diffusing oil agent into pores and fissures. Infiltration phenomenon intensifies this process since light fractions of a binder penetrate into micropores of coal substance.
- the changings in supermolecular structure of coal organic mass(COM) have been revealed in oil agglomeration process. The experience carried out on low rank salty coals of Western Donbas.
Опис
Ключові слова
oil agglomeration, coal structure, specific modification, adhesion
Бібліографічний опис
Beletskyi V. S. Specific modification of salty coals by means of oil agglomeration / V. S. Beletskyi, T. G. Shendrik, A. Kheloufi // Coal Stucture' 96 : abstr. of the 3rd Intern. Symp., 23-25 September 1996, Zakopane, Poland. – Zakopane, 1996. – 5 p.