Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Experimental Study on the Argon Impurity Effect in the Pressure Drop of CO2 mixture flow

관내 이산화탄소 압력강하에 아르곤 불순물이 미치는 영향에 관한 실험적 연구

  • Cho, Meang-Ik (Offshore CCS Research Unit, Korea Research Institute of Ships & Ocean Engineering, Korea Institute of Ocean Science and Technology) ;
  • Kang, Seong-Gil (Offshore CCS Research Unit, Korea Research Institute of Ships & Ocean Engineering, Korea Institute of Ocean Science and Technology) ;
  • Huh, Cheol (Ocean Science & Technology School, Korea Maritime and Ocean University) ;
  • Baek, Jong-Hwa (Offshore CCS Research Unit, Korea Research Institute of Ships & Ocean Engineering, Korea Institute of Ocean Science and Technology)
  • 조맹익 (한국해양과학기술원 선박해양플랜트연구소 해양CCS연구단) ;
  • 강성길 (한국해양과학기술원 선박해양플랜트연구소 해양CCS연구단) ;
  • 허철 (한국해양대학교 해양과학기술융합학과) ;
  • 백종화 (한국해양과학기술원 선박해양플랜트연구소 해양CCS연구단)
  • Received : 2015.11.13
  • Accepted : 2015.12.04
  • Published : 2015.12.31
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Abstract

During the carbon-dioxide capture and storage(CCS) process, $CO_2$ is captured from large point source, and then injected and stored in stable geological structure for thousands and more years. Inside the captured $CO_2$ flow, various impurities, such as $N_2$, $O_2$, argon, etc, are included inevitably. These impurities affect on the CCS process on various aspects. In this study, we designed and built experimental facility to evaluate the various impurity effect on the $CO_2$ pipeline flow, and analyzed the effect of argon ratio and pressure variation on the pressure drop of $CO_2$ flow. By comparing experimental data with 4 kinds of pressure drop model, we figured out and recommended the Cicchitti's model since it showed most accurate result among compared models in this study.

이산화탄소 포집 및 저장기술(Carbon Capture&Storage, CCS)은 대규모 배출원으로부터 이산화탄소를 포집하여 지중의 안전한 지질구조에 수천년 이상 안정적으로 저장하는 기술이다. 포집된 이산화탄소에는 필연적으로 불순물이 포함되어있으며, 특히 연소과정에 투입되는 공기를 구성하는 대표적인 물질들인 질소, 산소, 아르곤 등이 유입될 수 있다. 이러한 불순물들은 포집 이후의 전체 공정에 다양한 영향을 미치게 된다. 본 연구에서는 이산화탄소 혼합물의 관내유동에 다양한 불순물이 미치는 영향을 평가할 수 있는 실험 장치를 설계 및 제작하였으며 특히 이산화탄소 혼합물의 관내유동에 있어 아르곤 불순물이 미치는 영향을 평가하였다. 즉, 이산화탄소-아르곤 혼합물 2상유동의 압력강하와 유동양식을 실험적으로 분석하였으며, 이를 다양한 압력강하 모델 및 상관식과 비교하여 추후 이산화탄소 혼합물 관련 공정 설계 시 참고할 수 있는 기초 데이터를 제시하고자 하였다.

Keywords

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