CO2 Capture and Sequestration

<p>CO<sub>2</sub> capture and sequestration (CCS) technologies aim to capture carbon dioxide (CO<sub>2</sub>) from CO<sub>2 </sub>sources separate the CO<sub>2</sub> and store it in suitable media. CO<sub>2</sub> can be captured using various technologies including absorption adsorption cryogenic processes and membrane gas separation. Therefore accurate selection design modelling and optimisation of the processes for CO<sub>2</sub> capture and the tuning of the material properties are essential. There are different methods used for CO<sub>2</sub> sequestration e.g. (i) geological sequestration which injects different phases of CO<sub>2</sub> into the subsurface; (ii) oceanic storage which dissolves CO<sub>2</sub> into an ocean at different depths; (iii) the solid-phase reaction of CO<sub>2</sub> with metal oxides to produce stable carbonates with no risk of CO<sub>2</sub> release to the atmosphere; etc. The flow transport and reaction of CO<sub>2</sub> during CCS and other related matters are also essential. To address these points a Special Issue of <em>Clean Technol.</em>and a reprint with all published papers have been organized which highlight the recent trends and innovative developments in CCS. In particular these papers highlight the following issues: Socio-political issues related to CCS development and deployment; Fundamental technical issues concerning the development and deployment of CCS; The synthesis of value-added chemicals using captured CO<sub>2</sub> in CCS; Applications of mathematical modelling for the development of CCS. The development of techno-economic costing models for CCS. Overall this reprint covers a diverse range of topics including some of the most pressing concerns for the future growth and development of CCS.</p>