Removal characteristics of CO2 using aqueous MEA/AMP solutions in the
absorption and regeneration process |
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Authors: | Won-Joon Choi Jong-Beom Seo Sang-Yong Jang Jong-Hyeon Jung and Kwang-Joong Oh |
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Institution: | 1. Greenhouse Gas Research Center, Korea Institute of Energy Research, Daejeon 305343, Korea 2. Department of Environmental Engineering, Pusan National University, Busan 609735, Korea 3. Department of Health Administration, Sorabol College, Gyeongju 780711, Korea |
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Abstract: | The carbon dioxide (CO2) removal efficiency, reaction rate, and CO2 loading into aqueous blended monoethanolamine (MEA) + 2-amino-2-methyl-1-propanol (AMP) solutions to enhance absorption characteristics of MEA and AMP were carried out by the absorption/regeneration process. As a result, compared to aqueous MEA and AMP solutions, aqueous blended MEA+AMP solutions have a higher CO2 loading than MEA and a higher reaction rate than AMP. The CO2 loading of rich amine of aqueous 18 wt.% MEA+12 wt.% AMP solution was 0.62 mol CO2/mol amine, which is 51.2% more than 30 wt.% MEA (0.41 mol CO2/mol amine). Consequently, blending MEA and AMP could be an effective way to design cousidering economical efficiency and used to operate absorber for a long time. |
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Keywords: | carbon dioxide monoethanolamine 2-amino-2-methyl-1-propanol absorption regeneration |
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