Enhanced coal bed methane recovery

Enhanced coal bed methane recovery

Enhanced coal bed methane recovery is a method of producing additional coalbed methane from a source rock, similar to enhanced oil recovery applied to oil fields. Carbon dioxide (CO2) injected into a bituminous coal bed would occupy pore space and also adsorb onto the carbon in the coal at approximately twicethe rate of methane (CH4), allowing for potential enhanced gas recovery.cite web|url = http://www.dnr.state.oh.us/Portals/10/pdf/BurgerReport.pdf|title=Geologic Assessment of the Burger Power Plant and Surrounding Vicinity for Potential Injection of Carbon Dioxide | first = Lawrence H. | last = Wickstrom | coauthors = Ernie R. Slucher, Mark T. Baranoski, and Douglas J. Mullett| publisher = Ohio Geological Survey |year=2008|accessdate=2008-06-21 | location = Columbus, Ohio | id = Open-File Report 2008-1] This technique may be used in conjunction with carbon capture and storage in mitigation of global warming where the carbon dioxide that is sequestered is captured from the output of fossil fuel power plants.

A research project at ETH Zurich is studying the process of pumping carbon dioxide into unminable coal seams and recovering the methane that is subsequently displaced. Without other incentives, enhanced coal bed methane recovery is not economical as the commercial value of the released methane does not completely offset the cost of pumping. [cite web|url=http://www.ipe.ethz.ch/laboratories/spl/research/adsorption/project03|title=ETH - SPL - Enhanced coal bed methane recovery|date=2006-08-31|publisher=ETH Zurich]

ee also

* Coal bed methane extraction

Further reading

* Reznik, A., Singh, P. K., and Foley, W. L., 1982, An analysis of the effect of carbon dioxide injection on the recovery of in-situ methane from bituminous coal: An experimental simulation: Society of Petroleum Engineers/U.S. Department of Energy 10822
* Gale, J., and Freund, P., 2001, Coal-bed methane enhancement with CO2 sequestration worldwide potential: Environmental Geosciences, v. 8, no. 3, p. 210–217.
* Schroeder, K., Ozdemir, E., and Morsi, B.I., 2002, Sequestration of carbon dioxide in coal seams: Journal of Energy and Environmental Research, v. 2, no. 1. p. 54–63. (from U.S. Department of Energy, National Energy Technology Laboratory, First National Conference on Carbon Sequestration, 2001).

References


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