二氧化碳收集利用与处置技术分析

化石燃料的燃烧是百余年来大气中二氧化碳（CO2）浓度增加的主要原因。CO2的收集和处置则是抑制这一趋势的有效途径。本文通过对现有收集利用和处置技术的分析，认为火电厂是收集CO2的重点考虑对象；CO2用于三次采油及天然气回收在技术上和经济上比较可行；蓄水层储气前景广阔值得研究；深海处置有待进一步探索；CO2用于置换开采天然气水合物也是很有前景的方案。 <hr /> The burning of fossil fuel is the primary cause to have the concentration of carbon dioxide（CO2） in atmosphere increased during the past more than a hundred of years,and the capture and disposal of CO2 is an effective method to control its rising tendency.By analysis of the current capture and disposal technologies of CO2,it is concluded that firepower plants are the key targets to capture CO2.The paper also puts forth that tertiary oil recovery and natural gas recovery with CO2 are feasible both technologically and economically;storage of CO2 in saline aquifer is a method of nice foreground and deserves to be researched; disposal of CO2 in deep seafloor will be further investigated;and displacement of gas hydrate with CO2 is a tempting programme also.

中国科学院知识创新工程重要方向项目（KGCX2-SW-309）