Characterization of Coal Porosity for Naturally Tectonically Stressed Coals in Huaibei Coal Field, China

The enrichment of coalbed methane (CBM) and the outburst of gas in a coal mine are closely related to the nanopore structure of coal. The evolutionary characteristics of 12 coal nanopore structures under different natural deformational mechanisms (brittle and ductile deformation) are studied using a...

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Veröffentlicht in:	TheScientificWorld 2014-01, Vol.2014 (2014), p.1-13
Hauptverfasser:	Wei, Mingming, Li, Zhuo, Hou, Quanlin, Ju, Yiwen, Li, Xiaoshi, Fan, Junjia
Format:	Artikel
Sprache:	eng
Schlagworte:	Adsorption Chemical properties China Coal Coal - analysis Deformation Geological Phenomena Identification and classification Laboratories Metamorphism Methods Microscopy, Electron, Scanning Nanopores - ultrastructure Nitrogen - chemistry Porosity Scanning electron microscopy
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Zusammenfassung:	The enrichment of coalbed methane (CBM) and the outburst of gas in a coal mine are closely related to the nanopore structure of coal. The evolutionary characteristics of 12 coal nanopore structures under different natural deformational mechanisms (brittle and ductile deformation) are studied using a scanning electron microscope (SEM) and low-temperature nitrogen adsorption. The results indicate that there are mainly submicropores (2~5 nm) and supermicropores ( 4 m2/g, with pore sizes
ISSN:	2356-6140 1537-744X 1537-744X
DOI:	10.1155/2014/560450