Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Investigating the Thermodynamic Behavior of a Dichloromethane/Carbon Dioxide Mixture Using Equations of State

상태방정식을 이용한 디클로로메탄/이산화탄소 혼합 용매의 열역학적 거동 연구

  • Kwon, Woong (Department of Textile Engineering, Kyungpook National University) ;
  • Lee, Kwonyun (Department of Textile Engineering, Kyungpook National University) ;
  • Jeong, Euigyung (Department of Textile Engineering, Kyungpook National University)
  • 권웅 (경북대학교 섬유시스템공학과) ;
  • 이권윤 (경북대학교 섬유시스템공학과) ;
  • 정의경 (경북대학교 섬유시스템공학과)
  • Received : 2022.09.17
  • Accepted : 2022.10.22
  • Published : 2022.10.31
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Abstract

Single- or multi-component supercritical fluids, which exhibit excellent solubility in polymers, are used as solvents in polymer-based industries. Because their properties change easily with volume, temperature, and pressure, the use of single- or multi-component supercritical fluids in industrial applications requires the supercritical fluid apparatus to be designed according to the required volume, temperature, and pressure. Supercritical fluid apparatus design and optimization can benefit greatly from the analysis and understanding of the thermodynamic behavior of single- or multi-component fluids. Therefore, this study investigated the correlation between the composition ratio of a dichloromethane/carbon dioxide mixture and pressure at 200 ℃ using ideal gas, van der Waals, Redlich-Kwong, Soave-Redlich-Kwong, and Peng-Robinson equations of state. The critical temperature according to the compositional change of the dichloromethane/carbon dioxide mixture was predicted by the basic mixing rule. This analysis of the thermodynamic behavior of the dichloromethane/carbon dioxide mixture can be used for optimizing supercritical fluid apparatuses.

Keywords

Acknowledgement

본 연구는 2022년도 산업통상자원부 및 산업기술평가관리원(KEIT) 연구비 지원에 의한 연구임(과제번호 20015746).

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