Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Pre-Combustion Capture of Carbon Dioxide Using Principles of Gas Hydrate Formation

가스 하이드레이트 형성 원리를 이용한 연소전 탈탄소화 연구

  • Lee, Hyun-Ju (School of Materials Science and Engineering, Pusan National University) ;
  • Lee, Ju-Dong (Korea Institute of Industrial Technology, Transportation & Machinery Components Technology Service Center) ;
  • Kim, Yang-Do (School of Materials Science and Engineering, Pusan National University)
  • 이현주 (부산대학교 재료공학부) ;
  • 이주동 (한국생산기술 연구원 수송기계부품지원센터) ;
  • 김양도 (부산대학교 재료공학부)
  • Published : 2008.12.27
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Abstract

The emission of carbon dioxide from the burning of fossil fuels has been identified as a major contributor to green house emissions and subsequent global warming and climate changes. For these reasons, it is necessary to separate and recover $CO_2$ gas. A new process based on gas hydrate crystallization is proposed for the $CO_2$ separation/recovery of the gas mixture. In this study, gas hydrate from $CO_2/H_2$ gas mixtures was formed in a semi-batch stirred vessel at a constant pressure and temperature. This mixture is of interest to $CO_2$ separation and recovery in Integrated Coal Gasification (IGCC) plants. The impact of tetrahydrofuran (THF) on hydrate formation from the $CO_2/H_2$ was observed. The addition of THF not only reduced the equilibrium formation conditions significantly but also helped ease the formation of hydrates. This study illustrates the concept and provides the basic operations of the separation/recovery of $CO_2$ (pre-combustion capture) from a fuel gas ($CO_2/H_2$) mixture.

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