关键词: 钠石灰, 二氧化碳, 温度, 相对湿度, 动态吸附

Abstract: This paper conducted an experiment on dynamic absorption of carbon dioxide by sodium lime. The effects of environment factors and absorption rate on the absorption efficiency were investigated by controlling different environment parameters. Temperature and relative humidity were chosen as the controlling factors. The results showed that the maximum absorption efficiency of sodium lime；both relative humidity and temperature had influences on absorption efficiency and absorption rate，which were positively correlated；the effects of relative humidity were more obvious；the maximum difference in absorption efficiency was 6% and average dynamic absorption rate difference was 281 mL/min at different humidifies. The absorption process demonstrated stability and could be，suitable for carbon dioxide removal in underground applications.

Key words: sodium lime, carbon dioxide, temperature, relative humidity, dynamic absorption