Absorption characteristics of new solvent based on a blend of AMP and 1,8-diamino-p-menthane for CO2 absorption |
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| Authors: | Sang-Sup Lee Seong-Man Mun Won-Joon Choi Byoung-Moo Min Sang-Won Cho and Kwang-Joong Oh |
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| Institution: | Department of Environmental Engineering, Chungbuk National University, Cheongju 361-763, Korea;Department of Environmental Engineering, Pusan National University, Busan 609-735, Korea;Corporate R&D Institute, Fuel Cell System Development Team, Doosan Heavy Industries & Construction, Daejeon 305-811, Korea;Greenhouse Gas Research Center, Korea Institute of Energy Research, Daejeon 305-343, Korea;Department of Energy and Environment, Korea Polytechnic VII College, Gyeongnam 642-020, Korea;Department of Environmental Engineering, Pusan National University, Busan 609-735, Korea |
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| Abstract: | 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 = 7.702×106 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. |
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| Keywords: | carbon dioxide absorption rate and capacity 1 8-diamino-p-menthane 2-amino-2-methyl-1-propanol |
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