While reacting CO2 with sub-surface mafic/ultramafic phases potentially captures greenhouse gas emissions, low porosity and very slow kinetics makes this problematic. Mineral processing tailings and mining wastes offer distinct particles with exposed surfaces that enhance reactivity, and Australia’s mining sector has numerous prospective tailings streams. Passive carbonation of such tailings is known, although reactivity is still usually low. This review evaluates the potential of accelerated mineral carbonation (AMC), engineered routes to facilitate mafic/ultramafic tailings carbonation.

中文翻译：

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非原位矿物碳化工艺挑战和技术推动因素：澳大利亚视角的回顾


虽然 CO2 与次表面镁铁质/超镁铁质相反应可能会捕获温室气体排放，但低孔隙率和非常慢的动力学使这成为问题。矿物加工尾矿和采矿废料具有独特的颗粒，其裸露的表面增强了反应性，澳大利亚的采矿业有许多潜在的尾矿流。这种尾矿的被动碳化是已知的，尽管反应性通常仍然很低。本综述评估了加速矿物碳化 （AMC） 的潜力，加速矿物碳化是促进镁铁质/超镁铁质尾矿碳化的工程路线。