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Recovery of stored gas in coal by nitrogen injection – a laboratory study

Conference Paper


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Abstract


  • With increasing worldwide concern on Green House Gas (GHG) emission and its

    reduction, significant interest is now directed toward finding a practical and economical ways of

    enhancing methane gas containment in coal deposits. Carbon dioxide sequestration has been tried

    successfully for the recovery of methane from coal measures rocks. A laboratory study was

    undertaken to examine the effect of displacing the adsorbed gases in coal with N2 injection. To study

    the feasibility of removing the initially adsorbed gas from coal with another gas, tests were carried out

    using an in-house built multi-function outburst research rig (MFORR). Accordingly the following

    laboratory tests were carried out: sorption and desorption characteristics of CO2/CH4 mixed gas in coal,

    displacement characteristics of adsorbed mixed gases with N2 injection, displacement characteristics of

    adsorbed CO2 with N2 injection, and displacement characteristics of adsorbed CH4 with N2 injection.

    The study revealed that CO2 desorption increased by almost 30% as a result of N2 injection, which is

    about double that obtained without N2 injection. This finding has significant bearing in solving the

    drainage difficulties experienced at West Cliff Colliery and Panel 500 area, which had difficulty in

    draining CO2 gas concentration zones.

Publication Date


  • 2010

Citation


  • Florentin, R., Aziz, N., Black, D., Nghiem, L. & Baris, K. (2010). Recovery of stored gas in coal by nitrogen injection – a laboratory study. 10th Underground Coal Operators Conference (pp. 217-228). Wollongong, Australia: University of Wollongong.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1971&context=coal

Ro Metadata Url


  • http://ro.uow.edu.au/coal/310/

Start Page


  • 217

End Page


  • 228

Abstract


  • With increasing worldwide concern on Green House Gas (GHG) emission and its

    reduction, significant interest is now directed toward finding a practical and economical ways of

    enhancing methane gas containment in coal deposits. Carbon dioxide sequestration has been tried

    successfully for the recovery of methane from coal measures rocks. A laboratory study was

    undertaken to examine the effect of displacing the adsorbed gases in coal with N2 injection. To study

    the feasibility of removing the initially adsorbed gas from coal with another gas, tests were carried out

    using an in-house built multi-function outburst research rig (MFORR). Accordingly the following

    laboratory tests were carried out: sorption and desorption characteristics of CO2/CH4 mixed gas in coal,

    displacement characteristics of adsorbed mixed gases with N2 injection, displacement characteristics of

    adsorbed CO2 with N2 injection, and displacement characteristics of adsorbed CH4 with N2 injection.

    The study revealed that CO2 desorption increased by almost 30% as a result of N2 injection, which is

    about double that obtained without N2 injection. This finding has significant bearing in solving the

    drainage difficulties experienced at West Cliff Colliery and Panel 500 area, which had difficulty in

    draining CO2 gas concentration zones.

Publication Date


  • 2010

Citation


  • Florentin, R., Aziz, N., Black, D., Nghiem, L. & Baris, K. (2010). Recovery of stored gas in coal by nitrogen injection – a laboratory study. 10th Underground Coal Operators Conference (pp. 217-228). Wollongong, Australia: University of Wollongong.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1971&context=coal

Ro Metadata Url


  • http://ro.uow.edu.au/coal/310/

Start Page


  • 217

End Page


  • 228