Modeling binary CO{sub 2}/CH{sub 4} flow through coal media
- Middle East Technical University, Ankara (Turkey)
CO{sub 2} can be sequestered in coal seams considering the environmental issues. By means of injecting CO{sub 2} into the coal seams, both sequestration of CO{sub 2} and the enhanced recovery of methane inside the coal seam can be realized. One-dimensional simulation regarding the binary CO{sub 2}/CH{sub 4} flow in a coal seam core was studied by using an analytical solution method. The simulation results were compared with experimental data by matching the effluent concentrations of CO{sub 2} and CH{sub 4}. The transport parameters such as longitudinal dispersion coefficient, retardation factor, and distribution coefficient were determined. It was seen that the amount of CO{sub 2} captured inside the coal sample during binary displacement was much lower than the maximum adsorption capacity of the coal at the same pressure. Then the transport behavior of CO{sub 2} and CH{sub 4} inside the coal seam was simulated. The results of analytical solution were in good agreement with the measured ones within the acceptable error range.
- OSTI ID:
- 21095860
- Journal Information:
- Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, Vol. 30, Issue 20; ISSN 1556-7036
- Country of Publication:
- United States
- Language:
- English
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