کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1753475 1522597 2012 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental characterization of CH4 release from coal at high hydrostatic pressure
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
پیش نمایش صفحه اول مقاله
Experimental characterization of CH4 release from coal at high hydrostatic pressure
چکیده انگلیسی

Coal mines naturally emit gases, mostly methane, during exploitation and at the beginning of flooding. Once they are flooded, the conditions of gas migration are changed, and the capacity of release and retention of gas by coal is poorly known. The experimental device CASPER has made it possible to demonstrate and quantify a significant release of methane from coal under more than 3 MPa of hydrostatic pressure. The analysis of these results showed that the main fraction of released methane comes from sorption sites. The porous volume has a minor role in reaching content equilibrium, but has a strong effect on hydrostatic pressure, due to water penetration into the coal structure.


► Development of an experimental device to quantify CH4 release from flooded coal.
► The hydrostatic pressure does not stop CH4 emission from coal.
► Desorption is essentially due to release from sorption sites.
► Water diffusion in coal has a significant impact on hydrostatic pressure.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Coal Geology - Volumes 96–97, 1 July 2012, Pages 82–92
نویسندگان
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