Calcium looping process (CLP), which uses reversible reactions of CaO/carbon dioxide for capturing carbon dioxide, has received considerable attention recently owing to abundant reserves of potential sorbents and its various applications in post-combustion, pre-combustion capture and thermal energy storage. The main advantage of the carbon dioxide capture processes based on CLP is the much lower cost compared with other competing technologies. The loss-in-capacity problem increases the operating difficulty and costs and is one of the major obstacles to the application of the CLP-based systems...