In order to cope with global warming and reduce CO₂ emissions to the atmosphere, CO₂ capture has become a key technology for global research. Based on the research status of CO₂ capture technology at home and abroad, this paper divides CO₂ capture technology into four technical routes: pre-combustion capture, post-combustion capture, oxyfuel combustion and chemical looping combustion. Pre-combustion capture and post-combustion capture technology mainly include absorption method, adsorption method, membrane separation method, low temperature fractionation method and other methods. Firstly, the research status and application progress of different methods of these four technical routes are summarized, and the future development trend of each technical method is proposed. Subsequently, the advantages and disadvantages of different CO₂ capture technologies are compared. It is found that each technical method has its own advantages and disadvantages, and no technology can independently meet the requirements of high efficiency, low cost, low energy consumption and large scale. Finally, it is proposed that in the future, we should focus on the problems and challenges of CO₂ capture technology, focus on research and development, break through the bottleneck at this stage, and promote the economy, efficiency and scale of CO₂ capture.

Carbon Dioxide, Capture Technology, Research and Application, Carbon Peaking and Carbon Neutrality