CO2捕集技术的研究现状与发展趋势.

Objective Under the background of global energy conservation and emission reduction and the guidance of China’s dual-carbon strategic objectives of "carbon dioxide peaking and carbon neutrality", targeted research on CO2 capture technology suitable for various working conditions has become an extremely important research trend. Methods Combining the latest developments in the field of carbon capture, in view of the CO2 emission in the combustion process, the advantages, disadvantages and application trends of absorption method, adsorption method, cryogenic separation, membrane absorption method, and hyper gravity method were compared. Meanwhile, the development trend of CO2 capture technology was analyzed and summarized. Results The technical characteristics of several post-combustion capture technologies for CO2 were clarified. It is elucidated that the selection of absorbent is the key to the current absorption methods, and the optimization of reactor and operating conditions are also extremely crucial. In view of adsorption methods, the development of adsorbents with high selectivity, high adsorption capacity, good desorption capacity, and low cost are the top priority for large-scale industrial applications. As for membrane technology, the advantage is easy and flexible operation, but improving the performance of membranes still requires continuous research. Overall, the characteristics, application potential and research directions of several capture technologies were clarified. Conclusions Although many CO2 absorption and separation technologies have been widely studied and applied, there are still many problems in the specific applications. In the field of carbon capture, the research on new materials and new solvents for CO2 absorption and separation is still a frontier and hot topic. From the perspective of carbon capture technology, the future development trend is likely to be the use of two or more technologies in series to meet the decarbonization demand under more complex conditions. [ABSTRACT FROM AUTHOR]