Journal of Industrial Technology (산업기술연구)

Kangwon National University, Institute of Industrial Technology (강원대학교 산업기술연구소)
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PVT Relations of Associating Fluids using the Cubic-Plus-Association EoS

CPA 상태방정식에 의한 회합성 유체의 PVT 관계

  • 김미경 (강원대학교 대학원 화학공학과) ;
  • 심민영 (강원대학교 대학원 화학공학과) ;
  • 김기창 (강원대학교 화학공학과)
  • Published : 2000.06.30
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Abstract

For modeling an equation of state suitable for describing associating fluids, we combined the cubic equation of state (Peng-Robinson) and an association term of SAFT. The resulting EoS (Cubic-Plus-Association) is not cubic with respect to volume and contains five pure compound parameters. Excellent correlations of both vapour pressures and saturated liquid volumes were obtained for n-alcohols and secondary alcohols. We considered a method for reducing the number of adjustable pure compound parameters from five to three, and the resulting 3-parameters EoS relation maintained the good correlation of vapour pressures and saturated liquid volumes.

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