Porosity of bituminous coals
- Book ID
- 104276406
- Publisher
- Elsevier Science
- Year
- 2002
- Weight
- 155 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0140-6701
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β¦ Synopsis
occurrence of weak autoxidation processes has been observed in the coal seam at a depth from 3 to 5 m. Mierinite whose percentage is relatively high has been formed as a result of high temperature processes that take place in the peat. The higher amount of imerinite macerals predetermines the higher oxidative stability of this coal.
02/01272 Peculiarities of gas content and metamorphic changes in coals in the southwest coal region of the Lvov-Volyn Basin
Kruglova, R.L. Geol. Geokhim. Goryuch. Kopalin, 1999, 4, 70-75. (In Ukrainian) Methane content and metamorphism of coal, both regionally and in the stratigraphic section of coal seam, were studied. A close connection of the methane content with the coalification degree and coal depth was established.
π SIMILAR VOLUMES
Certain high-sulphur-containing, high-volatile bituminous (hvb) coals have been converted into products which are almost completely soluble in chloroform. These products were obtained by a series of reactions involving initial oxidation with 2N nitric acid, depolymerization with boron trifluoride-ph
## Pyrolysisgaschromatography (Py-g.c.) was used tocharacterizequantitativelya seriesof high-to lowvolatile bituminous Permian Australian coals. The levels of n-alkanes, n-alkenes and triterpenoids released by pyrolysis all decrease as a function of increasing rank and thus, the coal samples can b