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新型二氧化碳捕捉工作组报告(2011)novel co2 capture task force report(2011) 新型二氧化碳捕捉工作组报告(2011)novel co2 capture task force report(2011)

新型二氧化碳捕捉工作组报告(2011)novel co2 capture task force report(2011)

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A portfolio of low-carbon technologies are required to be developed to reach Government targets for CO2 emissions. A large proportion of Australia’s electrical energy is generated using coal and there is an increasing use of natural gas. Geological sequestration of CO2 from these fossil sources is being extensively studied in Australia. The present study was convened by the sponsors BCIA1, ANLECR&D2 and the Global CCS Institute3 to investigate CO2 capture and storage by means alternative to geological storage. The technologies for novel CO2 capture considered by the Task Force fall into the areas of bio‑sequestration and mineral sequestration, given by the following definitions: Bio-sequestration is the capture and storage of atmospheric CO2 by biological processes. This may be by increased photosynthesis (through re-forestation, or decreased de-forestation); by enhanced soil carbon trapping in agriculture; or by the use of algal bio-sequestration to absorb CO2 from industrial processes. Mineral sequestration, or mineral carbonation, involves reaction of CO2 with metal oxides that are present in common, naturally occurring rocks. This process mimics natural weathering phenomena, and results in natural carbonate products that are stable on a geological time scale. The Task Force study commenced in January 2011 and concluded in August 2011. The first activity involved convening independent experts from industry, universities and the CSIRO to a workshop where an action plan for the study was developed. As part of the workshop, a series of “hypotheses” to be answered were developed as a key component of the action plan.

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