Post-combustion CO2 capture with potassium L-lysine

Potassium L-lysine을 이용한 연소 후 이산화탄소 포집

  • Lim, Jin Ah (Greenhouse Gas Research Center, Korea Institute of Energy Research) ;
  • Yoon, Yeo Il (Greenhouse Gas Research Center, Korea Institute of Energy Research) ;
  • Nam, Sung Chan (Greenhouse Gas Research Center, Korea Institute of Energy Research) ;
  • Jeong, Soon Kwan (Greenhouse Gas Research Center, Korea Institute of Energy Research)
  • 임진아 (한국에너지기술연구원 온실가스연구단) ;
  • 윤여일 (한국에너지기술연구원 온실가스연구단) ;
  • 남성찬 (한국에너지기술연구원 온실가스연구단) ;
  • 정순관 (한국에너지기술연구원 온실가스연구단)
  • Received : 2013.06.17
  • Accepted : 2013.09.06
  • Published : 2013.09.30


Carbon dioxide is one of the main causes of global warming. In order to develop a novel absorbent, the characteristics of amino acid salts solution as a solvent for $CO_2$ capture in continuous process were investigated. The cost of $CO_2$ capture is almost 70% of total cost of CCS (carbon dioxide capture and storage). In the carbon dioxide capture process, process maintenance costs consist of the absorbent including the absorption, regeneration, degradation, and etc. It is very important to study the characteristics of absorbent in continuous process. In this study, we have investigated the properties of potassium L-lysine (PL) for getting scale-up factors in continuous process. To obtain optimum condition for removal efficiency of $CO_2$ in continuous process by varying liquid-gas (L/G) ratio, concentration of $CO_2$ and absorbent (PL) were tested. The stable condition of absorber and regenerator (L/G) ratio is 3.5. In addition, PL system reveals the highest removal efficiency of $CO_2$ with 3.5 of L/G and 10.5 vol% $CO_2$ ($1.5Nm^3/h$).


Potassium L-lysine;Amino acid salt solution;$CO_2$ capture;Continuous process


Supported by : 한국에너지기술연구원


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