Györe Domokos előadásának helyes címe: How can noble gases help with the fight against climate change?
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Györe Domokos, a Glasgowi Egyetem munkatársának előadására: " How can noble gases help with the fight against climate change?" ".
Időpont: November 18. 17.00 óra
Helyszín: ELTE 1117 Bp. Pázmány P. sétány 1/C, Mauritz B. terem -1.524
Az előadás angol nyelvű összefoglalója:
How can noble gases help with the fight against climate change?
The fight against climate change or global warming is currently a hot topic but little is heard in the media about global solutions. Global warming is caused by the faster-than-ever increasing atmospheric concentration of greenhouse gases, such as CO2, the product of fossil fuel burning. The physico-chemical capture and subsequent injection of industrial CO2 into deep geological reservoirs could offer suitable repository for man-made CO2, thus a solution to climate change. CO2 may be retained as a free gas phase, dissolved in formation waters or precipitated as carbonate minerals underground. But in the absence of a widely available, robust field-based technique, the true fate of the injected CO2 and its timing remain uncertain.
Noble gases (He, Ne, Ar, Kr and Xe) are present in natural fluids as trace components. Their isotopic composition is distinct to their, and therefore their carrying fluid’s source. Noble gas isotopes have been long used in tracing fluid origin and fate in the Earth’s crust. Recent works have been focusing on their applicability in tracing CO2 in both natural gas reservoirs and industrial CO2 sequestration experiments. It has been shown that noble gases are powerful tools in quantifying the amount of CO2 entering the water and/or mineral phase. Most recent works suggest that in possession of routine CO2 and noble gas isotopic composition gas analysers, the fate of the CO2 may be easily monitored. Such technique will provide proof on the fate of CO2 with no doubt and significantly reduce the risk of CO2 sequestration. Consequently, noble gas isotope geochemistry has the potential to open doors towards a geo-engineered solution of climate change.