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基于L-精氨酸的环境友好性及强碱性，将其用作捕获CO2的化学吸收剂。采用鼓泡吸收与加热再生的方法，对L-精氨酸水溶液吸收与解吸CO2性能进行研究，并重点考察添加3％哌嗪的L-精氨酸水溶液。结果表明，常温常压下，L-精氨酸水溶液具有较高的CO2吸收容量，约0．83mol CO2／mol精氨酸。起始解吸温度也较低，仅80℃。添加哌嗪或氢氧化钠的吸收液吸收能力优于无添加的精氨酸水溶液。其中添加哌嗪的L-精氨酸水溶液最适宜作CO2吸收剂，80℃下解吸速率均高于其他2种吸收液，吸收解吸循环达10次时，解吸量和解吸率未受较大影响，解吸率接近100％。“,”In view of the environment friendly and strongly alkaline behavior of L-Arginine, it was used as chemical absorbent for CO2 capture. By using bubble absorption and heating regenerative approach, the investigation of CO2 absorption-desorption cycles in aqueous L-Arginine solution was conducted, particularly the absorption liquid with 3% piperazine. The results demonstrate that the aqueous L-Arginine solution possesses good CO2 absorption capacity （about 0.83mol CO2/mol Arginine） at ambient temperatures and pressures. Initial desorption temperature is low, only about 80℃ The absorption capacity of the absorption liquid containing piperazine or sodium hydroxide is superior to that containing nothing. Among them, the aqueous L-Arginine solution containing piperazine is the most suitable for CO2 trapping with the highest desorption rate at 80 ℃. After ten adsorption-desorption cycles, the CO2 amount of desorption is basically uninfluenced and average desorption efficiency is about 100%.