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Hydro-mechanical effects associated with geo-sequestration of CO2 in coal


The aim of this project is to perform tests to explore the ease with which CO2 flows through coal, and how this may change as adsorbtion occurs, and to investigate the resulting change in mechanical strength and stiffness.


Professor David Airey.

Research location

Civil Engineering

Program type



Australia relies heavily on coal for power generation. To meet concerns of climate change and reduce CO2 emissions to the atmosphere it is proposed to pump CO2 back into the ground into deep unmineable coal deposits. Coal is attractive as a repositry because it has the capacity to adsorb relatively large amounts of CO2. Studies have suggested that the coal may swell and soften as it adsorbs CO2 and if so this would have significant consequences on the safety and economic viability of using coal as the storage medium. Experiments will provide input into numerical models which will be developed to describe the CO2 transport.

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Opportunity ID

The opportunity ID for this research opportunity is 285

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