Comparative analysis of carbon dioxide capture technologies for the flue gas from combustion

Abstract

In the context of global climate change, carbon dioxide capture technology, as one of the key technologies for mitigating greenhouse gas emissions, has received extensive attention from the international community for its research and application. In this thesis, various CO2 capture technologies in combustion flue gas are comparatively analyzed, and the technologies studied include physical absorption, chemical absorption, membrane separation and calcium looping combustion. Each method is comparatively analyzed on the basis of efficiency, cost, technological maturity and environmental impact. The main conclusion reached in this thesis is that the applicability and performance of these technologies varies widely, with chemical absorption having the highest CO2 capture efficiency and calcium looping combustion being the most cost-effective. The thesis concludes with recommendations for advancing CO2 capture technologies, emphasizing the need for research and development of efficient adsorbent materials, membrane technologies, and process optimization to improve performance and reduce environmental impacts. This comparative study aims to inform the future development of CO2 capture technologies to effectively reduce greenhouse gas emissions.