Sequestration Down Under
Dr. Richard Sakurovs
CSIRO Energy Technology
Monday, October 2, 2006 3:00 pm
Ben Bandy Conference Center
UK Center for Applied Energy Research
Australia is far more dependent on coal-generated electricity than most other nations, and this means that it has a relatively high contribution to carbon dioxide emissions, on a per capita basis. As a consequence, it has an active series of programs investigating aspects of sequestration of carbon dioxide, from understanding mechanisms of sequestration to building pilot sequestration plants.
If we are to identify suitable sequestration targets, it is necessary to determine the extent and rate of the interactions between carbon dioxide and water, coal and rocks so that we can answer questions such as how much can be stored, how fast can it be injected, and most importantly, how long will it stay there. Here I will talk about recent findings in understanding these interactions, and some progress in identifying and testing target sites. For example, one particular advance is in natural analogue studies: identifying sites where CO2 injection into coal has occurred naturally in the distant past; this is a good indicator of long term storage potential. Another is an Australian-wide assessment of potential sequestration sites GEODISC.