Department of Environmental Engineering, Chungbuk National University, Cheongju 361-763, Korea.
J Environ Sci (China). 2012;24(5):897-902. doi: 10.1016/s1001-0742(11)60788-2.
Aqueous 1,8-diamino-p-menthane (KIER-C3) and commercially available amine solutions were tested for CO2 absorption. A 2-amino-2-methyl-1-propanol (AMP) solution with an addition of KIER-C3 showed 9.3% and 31.6% higher absorption rate for CO2 than the AMP solution with an addition of monoethanolamine (MEA) and ammonia (NH3), respectively. The reaction rate constant for CO2 absorption by the AMP/KIER-C3 solution was determined by the following equation: k2,AMP/C3 = 7.702 x 10(6) exp (-2248.03/T). A CO2 loading ratio of the AMP/KIER-C3 solution was also 2 and 3.4-times higher than that of the AMP/NH3 solution and the AMP/MEA solution, respectively. Based on the experimental results, KIER-C3 may be used as an excellent additive to increase CO2 absorption capability of AMP.
水合 1,8-二氨基-p--menthane（KIER-C3）和市售的胺溶液被测试用于 CO2 吸收。添加 KIER-C3 的 2-氨基-2-甲基-1-丙醇（AMP）溶液比添加单乙醇胺（MEA）和氨（NH3）的 AMP 溶液对 CO2 的吸收速率分别高 9.3%和 31.6%。通过以下方程确定 AMP/KIER-C3 溶液吸收 CO2 的反应速率常数：k2,AMP/C3 = 7.702 x 10(6) exp (-2248.03/T)。AMP/KIER-C3 溶液的 CO2 负载比也分别比 AMP/NH3 溶液和 AMP/MEA 溶液高 2 倍和 3.4 倍。根据实验结果，KIER-C3 可用作增加 AMP 吸收 CO2 能力的优异添加剂。
