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18 Jun 2010 09:06:12

Project looks to store CO2 in rock form

Project looks to store CO2 in rock form
Tests are being carried out to establish if carbon dioxide can be stored underground in rock form in Iceland.

The Carbonfix project is looking at the possibility of sequestration of carbon dioxide in basalt. A pilot project is now taking place at the Hellisheidi Geothermal Power Plant in the south of the country.

Gas from the plant will be dissolved in water and injecting it at high pressures into rock located 200 metres to 800 metres below the surface.

When the CO2 percolates, it dissolves some of the minerals and forms solid carbonates, meaning the gas can be stored in rock form.

Current methods for carbon storage generally involve containing the gas within its natural form.

Sigurdur Gislason of the University of Iceland presented the initial results at the Goldschmidt Conference hosted by the University of Tennessee, Knoxville.

Mr Gislason said that if the project is successful it will be suitable for use wherever carbon is produced.

The news comes as the Committee on Climate Change call on the UK government to fit gas-fired power stations with carbon capture and storage technology. ADNFCR-1235-ID-19845353-ADNFCR

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