乙醇胺改性活性炭及其对二氧化碳的吸附性能

摘要

A new CO2 adsorbent was prepared by modifying activated carbon using ethanolamine (MEA) by impregnation method .The modified activated carbon was used to adsorb CO2 from simulation exhaust gas .The results indicate that the optimum modifying conditions for the activated carbon of 50 g are the modified amount of 130 mL ,modified temperature of 60 ℃ ,modified time of 6 h ,drying time of 6 h .The modified activated carbon adsorption capacity for CO 2 is increased from 0 .941 mmol/g to 4 .165 mmol/g .This method has a significant effect for modifying activated carbon .%研究了用浸渍法将乙醇胺（MEA）负载于活性炭孔径表面制备新型 CO2吸附剂。在改性剂乙醇胺用量130 mL 、改性温度60℃、改性时间6 h 、干燥时间6 h 条件下对50 g 活性炭进行改性，然后用改性前后的活性炭从模拟烟气中吸附 CO2，结果表明，改性前活性炭对 CO2吸附量为0．941 mmol／g ，改性后为4．165 mmol／g ，吸附量提高了3．4倍。此方法对活性炭改性有明显效果。