| CO2矿化研究现状及应用潜力 |
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| 引用本文： | 任京伟,王涛,陈雨雷,王燕,董芸希,杜沈萌,杜金智.CO2矿化研究现状及应用潜力[J].地球科学,2020,45(7):2413-2425. |
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| 作者姓名： | 任京伟 王涛 陈雨雷 王燕 董芸希 杜沈萌 杜金智 |
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| 作者单位： | 1.成都理工大学地球科学学院, 四川成都 610059 |
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| 基金项目： | 全国陆域及海区地质图件更新与共享项目DD20190370国家自然科学基金项目41103017 |
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| 摘 要： | CO2浓度急剧上升成为一个很严峻的问题，因此，降低大气CO2浓度成为当务之急.目前涉及的方案中的海洋封存、地质封存，虽封存潜力巨大，但带来的负面影响也不容小觑.CO2矿化利用实质是模拟自然界岩石化学风化，作为一种新兴的减排方案，既能固定大气CO2，生成具有工业附加值的碳酸盐产品，又能实现环境友好.能够矿化利用的原材料包括天然富钙、镁硅酸盐矿物，工业碱性废固、液，盐湖中的氯化镁资源等，矿化利用的方法也不尽相同.虽然硅酸盐岩的风化是如何控制长时间尺度的气候变化的机制还没有定论，但风化过程中具有固定大量CO2的潜力这一认识已达成共识.对含有大量硅酸盐矿物的尾矿矿化CO2的研究是目前的热点，介绍了尾矿矿化CO2的研究现状及几种重要尾矿矿物的矿化应用潜力.
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| 关 键 词： | CO2矿化 碱性矿物 工业废固 尾矿 碳酸化反应 矿物学 |
| 收稿时间： | 2020-02-18 |
Research Status and Application Potential of CO2 Mineralization |
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| Abstract: | The sharp rise of carbon dioxide concentration has become a very serious problem, so reducing the atmospheric carbon dioxide concentration has become a top priority. Although the potential of marine and geological sequestration is huge, the negative impact of these schemes can not be underestimated. As a new emission reduction scheme, carbon dioxide mineralization can not only fix atmospheric carbon dioxide, generate carbonate products with industrial added value, but also achieve environmental friendliness. Raw materials that can be used for mineralization include natural calcium-rich, magnesium silicate minerals, industrial alkaline waste solids, liquids, magnesium chloride resources in salt lakes, etc. The methods of mineralization are also different. Although the mechanism of how the weathering of silicate rocks can control the long-term climate change has not been determined, there is a consensus that the weathering process has the potential to fix a large amount of CO2. The research on the mineralized CO2 of tailing containing a lot of silicate minerals is a hot spot at present. This paper introduces the research status of mineralized CO2 of tailing and the mineralized potential of several important tailing minerals. |
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