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Korean Chemical Engineering Research,
Vol.47, No.2, 185-189, 2009
Vol.47, No.2, 185-189, 2009
교반셀에서 측정한 아민첨가 암모니아수 흡수제의 이산화탄소 흡수 반응 속도 측정
Absorption Rate of Carbon Dioxide into Blended Ammonia Solution with Amine Additives in a Stirred Cell Reactor
10 wt% 암모니아수 흡수제에서 이산화탄소 흡수속도를 교반셀 반응기를 이용하여 293~337 K 범위에서 측정하였다. 암모니아 흡수제와 이산화탄소의 반응속도를 아레니우스 식으로 나타내었으며 활성화에너지는 50.42 kJ/mol였다. 2-Amino-2-methyl-1-propanol(AMP), 2-amino-2-methyl-1,3-propandiol(AMPD), 2-amino-2-ethyl-1,3-propandiol(AEPD)의 입체장애아민 첨가제가 1 wt% 함유된 흡수제에서의 이산화탄소 흡수속도를 측정하였다. 아민 첨가제들은 흡수속도에 영향을 주었으며 1 wt%의 AMP를 첨가한 경우 반응속도 상수는 약 53% 증가하였다.
Absorption rate of carbon dioxide into aqueous ammonia absorbent(10 wt%) was measured in the temperature range from 293 K to 337 K using a stirred-cell reactor. The reaction rate constant was correlated with the Arrehnius equation and the activation energy was 50.42 kJ/mol. CO2 absorption rate into modified ammonia absorbent was also investigated. For the modified ammonia absorbent, 1 wt% sterically hindered amines of 2-amino-2-methyl-1-propanol(AMP), 2-amino-2-methyl-1,3-propandiol(AMPD) and 2-amino-2-ethyl-1,3-propandiol(AEPD) were used as additives. The CO2 absorption rate increased by adding 1 wt% of the amine additive, in the case of AMP additive, the absorption rate enhanced by about 53%.
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