新奇事件簿 二氧化碳注入巖石層變身石頭
Scientists have come up with a smart but simple way to deal with carbon dioxide emissions, by turning them back into stone. Researchers in Iceland pumped 220 tons of CO2 deep underground into volcanic rock. It reacted with minerals in the rock and over a relatively short space of time, transformed into a chalk-like solid substance similar to limestone. The team expressed their surprise at both the success and the speed of the CO2 conversion. Lead scientist Juerg Matter said: "Of our 220 tons of injected CO2, 95 per cent was converted to limestone in less than two years." He added: "It was a huge surprise to all the scientists involved in the project, and we thought, 'Wow! This is really fast'."
二氧化碳變“石頭”封存，科學家研發(fā)簡易方法。在冰島，研究人員將220噸二氧化碳注入地下玄武巖層。二氧化碳與礦物質反應，經過一段時間（相對較短），二氧化碳發(fā)生固化，變成類似白堊形狀巖石。無論是實驗效果還是二氧化碳反應速度，研究小組均感到非常意外。研究主任潔歌·馬特爾認為：“在不到兩年間，220噸二氧化碳有95%轉換成石灰?guī)r。”他還指出：“所有項目研究員都感到非常意外。轉換速度實在太驚人了。”
The scientists hope their experiment will be adapted on a larger, more industrial scale. It could help to alleviate the problem of growing CO2 emissions entering the atmosphere and warming the planet. It could also become a key technique in carbon capture and storage (CCS) solutions. Many other CCS techniques have involved injecting and trapping CO2 underground. However, there was always the problem of the emissions leaking their way back above ground and into the atmosphere. Dr Matter was enthusiastic about his team's experiments. He said: "We need to deal with rising carbon emissions and this is the ultimate permanent storage turn them back to stone."
科學家希望該研究可應用于大規(guī)模生產。且有望緩解大氣二氧化碳排放，以及全球變暖。它也有望成為解決碳捕捉難題的核心技術。許多碳捕捉技術包含向地下捕捉以及注入二氧化碳。但二氧化碳也有可能泄露回地面，之后返回大氣。馬特爾博士對該項研究信心滿滿。他認為：“我們需要解決日益嚴重的碳排放問題，而“變石封存”將讓它永久封存。”
