화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.30, No.6, 1171-1180, June, 2013
DOI10.1007/s11814-013-0072-1  Export Citation
Improvement in CO2 absorption and reduction of absorbent loss in aqueous NH3/triethanolamine/2-amino-2-methyl-1-propanol blends
Min-Kyoung Kang, Soo-Bin Jeon, Min-Ho Lee1, and Kwang-Joong Oh†
  • Department of Environmental Engineering, Pusan National University, Busan 609-735, Korea
  • 1Department of Environment & Fire Team-Ulsan Plant, Hyundai Motor Company, Ulsan 683-791, Korea
E-mail:
Changes in the CO2 absorption rates and capacities of the absorbent 2-amino-2-methyl-1-propanol (AMP), blended with NH3 and other additives, were investigated toward performance improvement. The NH3-blended absorbent removed CO2 more efficiently than the AMP absorbent alone. However, absorbent loss through NH3 evaporation was observed under these conditions. A second absorbent, the tertiary amine triethanolamine (TEA), which has a low vapor pressure, was selected and blended with the NH3/AMP system to reduce NH3 evaporation. Its effects on NH3 loss and the absorption rate and capacity of the NH3/AMP system were investigated, and the optimum blending ratios were determined. In addition, the absorbent blend at the optimum blending ratio was compared to AMP alone and the commercially available absorbent monoethanolamine at the same weight ratio. The thermal stabilities of the absorbents, under conditions used in the CO2 absorption process, were compared by thermogravimetric analysis.
Keywords:CO2 Capture;CO2 Absorption;Absorbent Loss;Blending Absorbent Ratio;Thermogravimetric Analysis
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