Denmark’s undersea graveyard for imported CO2

COPEHHAGEN: Denmark on Wednesday inaugurated a challenge to retailer carbon dioxide 1,800 metres beneath the North Sea, the primary nation on this planet to bury CO2 imported from overseas.
The CO2 graveyard, the place the carbon is injected to forestall additional warming of the ambiance, is on the location of an deserted oil subject. Led by British chemical large Ineos and German oil firm Wintershall Dea, the “Greensand” challenge is predicted to retailer as much as eight million tonnes of CO2 per yr by 2030.
In December, it obtained an working allow to start out its pilot part. Nonetheless of their infancy and dear, carbon seize and storage (CCS) tasks intention to seize after which entice CO2 as a way to mitigate global warming. Round 30 tasks are at present operational or beneath improvement in Europe.
However not like different tasks that retailer CO2 emissions from close by industrial websites, Greensand distinguishes itself by bringing within the carbon from far-off. First captured on the supply, the CO2 is then liquefied – in Belgium in Greensand’s case – then transported, at present by ship however doubtlessly by pipelines, and saved in reservoirs akin to geological cavities or depleted oil and gasoline fields.
At Greensand, the carbon is transported in particular containers to the Nini West platform, the place it’s injected into an current reservoir 1.8 kilometres beneath the seabed.
As soon as the pilot part is accomplished, the plan is to make use of the neighbouring Siri subject as properly. Danish authorities, trying to hit carbon neutrality by 2045, say that is “a a lot wanted device in our local weather toolkit”. “It’ll assist us attain our targets. Since our subsoil has a storage potential far bigger than our emissions, we’re in a position to retailer carbon from different nations as properly,” local weather minister Lars Aagaard stated.
The North Sea is especially appropriate for any such challenge because the area already has pipelines and potential storage websites after many years of oil and gasoline manufacturing.
“The depleted oil and gasoline fields have many benefits as a result of they’re properly understood and there are already infrastructures which can probably be reused,” stated Morten Jeppesen, director of the Danish Offshore Know-how Centre on the Technical College of Denmark (DTU).
Close to the Greensand web site, France’s TotalEnergies can be exploring the opportunity of burying CO2 with the intention of trapping 5 million tonnes per yr by 2030.
In neighbouring Norway, carbon seize and storage services are already in operation to offset home emissions however the nation can even be receiving tonnes of liquefied CO2 in just a few years’ time, transported from Europe by ship. As Western Europe’s largest producer of oil, Norway additionally has the biggest potential for CO2 storage on the continent, significantly in its depleted oil fields.

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