Store the greenhouse gas in the deep rocks


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Berlin Technical University of scientists looking for ways
storing the gas CO2 greenhouse in rocks. When fossil fuels have definitely disappeared from the earth, we can use the gas stores as a source of carbon dioxide.
From 2005 under the Kyoto Protocol and the protection
climate, emission of CO2 must be reduced by 25% over
1990.
Near 10000 european facilities are affected by these measures, including 2500 Germany. Are concerned primarily the electricity suppliers, but also refineries, coke ovens,
iron and steel industries as well as large consumers of energy.
Germany is by far the largest producer of CO2 in Europe. to
reduce emissions of CO2 in the atmosphere, it was believed to store
direct greenhouse gas underground.
The teacher. Wilhelm Dominik of the Institute of Earth Sciences of the Technical University (TU) Berlin has studied this about appropriate storage techniques and is based among other traditional storage of natural gas. And unlike natural gas, carbon dioxide is not flammable or explosive and lets carry safely at using pipelines or tankers. When storing in deep -from optimally between 700 and 1200 meters- gas becomes liquid and the appropriate geological structures, it does not escape.
Porous rocks, ideally the sandstone or limestone are most appropriate for the geological storage. The old cavities of gas or oil are another option for storing CO2 in the rock.
Disposal at sea, which is the only place of natural storage CO2 is today still refuses due to environmental constraints.
The team of Mr. Dominik analyzes the properties of rocks in the laboratory and
simulates the interaction with the liquid phase. The geometry of structures
of appropriate rocks is reconstructed on the basis of seismic data, and
the representations in 3-D are created with the help of mathematicians
TU to simulate and visualize the flow process.

contacts:
- Teacher. Dr. Wilhelm Dominik - fakultät VI Bauingenieurwesen und Angewandte
Geowissenschaften - tel: + 49 (0) 30 314 25903 - E-mail:
wilhelm.dominik@tu-berlin.de -
http://www.tu-berlin.de/presse/pi/2004/pi269.htm
Sources: Depeche IDW, Press release from TU Berlin, 25 / 10 / 2004
Editor: Nicolas Condette, nicolas.condette@diplomatie.gouv.fr


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