Enhanced coal bed methane recovery

A Enhanced coal bed methane recovery finalized to carbon dioxide storage: study of the adsorption and swelling phenomena, and the coal bed dynamics.

When coal seams are formed by compaction of plants, gases including methane are generated and accumulated into the coal cleats or adsorbed into the coal micropores. Such coal bed methane is normally recovered by means of reservoir-pressure depletion, i.e. by pumping out water and degassing the reservoir. A more attractive process with higher yields is the so-called Enhanced Coal Bed Methane recovery (ECBM), whereby carbon dioxide is pumped into the coal seam to displace methane thanks to higher CO2 adsorptivity. Injecting CO2 in unminable coal seams leads not only to methane recovery but also to CO2 sequestration. The factors still limiting the implementation of ECBM recovery are economical, i.e. lack of penalties for CO2 emissions, as well as technological and scientific, i.e. limited understanding of fundamental issues related to ECBM. This is the main motivation of this project, in fact it will include on one side the experimental and modeling characterization of single and multicomponent adsorption/desorption on different coal type. On the other side, the analysis of the coal bed dynamics will be done through permeability and conventional breakthrough experiments but using a setup especially designed. Finally, the results from the two parts described above are combined to produce a detailed model of the whole system.


Wichtiger Hinweis:
Diese Website wird in älteren Versionen von Netscape ohne graphische Elemente dargestellt. Die Funktionalität der Website ist aber trotzdem gewährleistet. Wenn Sie diese Website regelmässig benutzen, empfehlen wir Ihnen, auf Ihrem Computer einen aktuellen Browser zu installieren. Weitere Informationen finden Sie auf
folgender Seite.

Important Note:
The content in this site is accessible to any browser or Internet device, however, some graphics will display correctly only in the newer versions of Netscape. To get the most out of our site we suggest you upgrade to a newer browser.
More information

© 2014 ETH Zurich | Imprint | Disclaimer | 31 August 2006