The Economics of Carbon Capture and Storage: An Update

The Future of CO2 Geological Sequestration: An Overview of Mineralization in Aqueous and Supercritical States

“…The World Climate Programme predicts that a doubling of the greenhouse gas content in the atmosphere from the preindustrial level will cause the Earth’s temperature to rise by 2.6–3.9 °C, posing a serious threat to human survival and security. , In response, the Intergovernmental Panel on Climate Change (IPCC) stated at its 48th meeting in October 2018 that global warming must be limited to 1.5 °C . To cope with the greenhouse effect crisis, carbon capture and sequestration (CCS) has been proposed as a climate mitigation strategy. − And it involves capturing, separating, transporting, sequestering and monitoring CO 2 from large CO 2 emission sources such as fossil fuel power plants, chemical raw material production plants, etc. − Among various sequestration measures, geological carbon sequestration (GCS) is a relatively reliable one, which is currently more extensive studied to inject CO 2 in supercritical state into saline aquifers, relying on caprock to prevent CO 2 leakage . Four capture methods occur in saline aquifers: structural capture, residual capture, dissolution capture, and mineral capture. − Among them, mineral capture sequesters CO 2 in solid form in minerals, which is the safest and most stable sequestration method. , In the traditional saline aquifer sequestration, due to the low content of reactive rocks, it takes thousands or even tens of thousands of years to achieve mineral capture. , However, with the progress of CO 2 geological sequestration research, that some strata containing a large amount of basalt have been discovered .…”