Anisotropic behaviour of coal for coalbed methane recovery and CO2 geosequestration. Amongst the cheapest and safest options for clean energy are to use natural gas from coal seams for electricity and fuel production and then permanently store carbon dioxide within the depleted seams. This requires information about the underground behaviour of coal at a level of detail which is not available. In particular, the directional and dynamic response of coal to changes in pressure, stress and gas in ....Anisotropic behaviour of coal for coalbed methane recovery and CO2 geosequestration. Amongst the cheapest and safest options for clean energy are to use natural gas from coal seams for electricity and fuel production and then permanently store carbon dioxide within the depleted seams. This requires information about the underground behaviour of coal at a level of detail which is not available. In particular, the directional and dynamic response of coal to changes in pressure, stress and gas interactions is required, which is the subject of this project. Coal bed methane is rapidly growing into a multi-billion dollar industry for Australia. The geosequestration of carbon dioxide in deep coal is widely recognised presenting a secure and economical opportunity for greenhouse gas control. Read moreRead less
Flue Gas and CO2 Geosequestration in Surat and Bowen Basin Coals. Climate change considerations require that CO2 emissions to atmosphere be severely reduced. This is best done in the short term by permanently storing the CO2 underground. Amongst the cheapest and safest options are to use coal seams, which then release valuable methane. The market value of this extra methane is ~$9billion and this reduces the cost of sequestration from ~$56 to $25/t CO2. Coal has a very strong affinity for CO2, ....Flue Gas and CO2 Geosequestration in Surat and Bowen Basin Coals. Climate change considerations require that CO2 emissions to atmosphere be severely reduced. This is best done in the short term by permanently storing the CO2 underground. Amongst the cheapest and safest options are to use coal seams, which then release valuable methane. The market value of this extra methane is ~$9billion and this reduces the cost of sequestration from ~$56 to $25/t CO2. Coal has a very strong affinity for CO2, so flue gas stream from power stations can be injected directly, eliminating the need for equipment to capture the CO2, providing savings of ~$500million for each large power station.Read moreRead less